Home / 1,638,001,461.40-2,457,002,192.10-655,579,628.80

Finding the Fourth Proportional to 1,638,001,461.40, 2,457,002,192.10 and 655,579,628.80

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Solution

The fourth proportional to 1,638,001,461.40, 2,457,002,192.10 and 655,579,628.80 is: 983,369,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,001,461.40 : 2,457,002,192.10 = 655,579,628.80 : x
  2. Step 2: Convert to fraction form
    1,638,001,461.40/2,457,002,192.10 = 655,579,628.80/x
  3. Step 3: Cross multiply
    1,638,001,461.40x = 2,457,002,192.10 × 655,579,628.80
  4. Step 4: Simplify right side
    1,638,001,461.40x = 1,610,760,585,057,704,192
  5. Step 5: Solve for x
    x = 1,610,760,585,057,704,192/1,638,001,461.40
  6. Step 6: Final answer
    x = 983,369,443.20

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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.