Home / 1,638,306,002.40-2,457,459,003.60-547,789,070.40

Finding the Fourth Proportional to 1,638,306,002.40, 2,457,459,003.60 and 547,789,070.40

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Solution

The fourth proportional to 1,638,306,002.40, 2,457,459,003.60 and 547,789,070.40 is: 821,683,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,306,002.40 : 2,457,459,003.60 = 547,789,070.40 : x
  2. Step 2: Convert to fraction form
    1,638,306,002.40/2,457,459,003.60 = 547,789,070.40/x
  3. Step 3: Cross multiply
    1,638,306,002.40x = 2,457,459,003.60 × 547,789,070.40
  4. Step 4: Simplify right side
    1,638,306,002.40x = 1,346,169,183,128,154,112
  5. Step 5: Solve for x
    x = 1,346,169,183,128,154,112/1,638,306,002.40
  6. Step 6: Final answer
    x = 821,683,605.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.