Home / 1,638,138,867.20-2,457,208,300.80-603,742,104.80

Finding the Fourth Proportional to 1,638,138,867.20, 2,457,208,300.80 and 603,742,104.80

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Solution

The fourth proportional to 1,638,138,867.20, 2,457,208,300.80 and 603,742,104.80 is: 905,613,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,138,867.20 : 2,457,208,300.80 = 603,742,104.80 : x
  2. Step 2: Convert to fraction form
    1,638,138,867.20/2,457,208,300.80 = 603,742,104.80/x
  3. Step 3: Cross multiply
    1,638,138,867.20x = 2,457,208,300.80 × 603,742,104.80
  4. Step 4: Simplify right side
    1,638,138,867.20x = 1,483,520,111,457,023,488
  5. Step 5: Solve for x
    x = 1,483,520,111,457,023,488/1,638,138,867.20
  6. Step 6: Final answer
    x = 905,613,157.20

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Double scale
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Similar ratio
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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.