Home / 688,307,260,420.20-949,866,972,428.96-375,454,462,131.20

Finding the Fourth Proportional to 688,307,260,420.20, 949,866,972,428.96 and 375,454,462,131.20

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Solution

The fourth proportional to 688,307,260,420.20, 949,866,972,428.96 and 375,454,462,131.20 is: 518,128,768,555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,307,260,420.20 : 949,866,972,428.96 = 375,454,462,131.20 : x
  2. Step 2: Convert to fraction form
    688,307,260,420.20/949,866,972,428.96 = 375,454,462,131.20/x
  3. Step 3: Cross multiply
    688,307,260,420.20x = 949,866,972,428.96 × 375,454,462,131.20
  4. Step 4: Simplify right side
    688,307,260,420.20x = 356,631,793,229,506,528,935,936
  5. Step 5: Solve for x
    x = 356,631,793,229,506,528,935,936/688,307,260,420.20
  6. Step 6: Final answer
    x = 518,128,768,555.76

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.