Home / 518,418,299,420.95-781,513,100,695.05-483,860,391,802.20

Finding the Fourth Proportional to 518,418,299,420.95, 781,513,100,695.05 and 483,860,391,802.20

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Solution

The fourth proportional to 518,418,299,420.95, 781,513,100,695.05 and 483,860,391,802.20 is: 729,417,220,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,418,299,420.95 : 781,513,100,695.05 = 483,860,391,802.20 : x
  2. Step 2: Convert to fraction form
    518,418,299,420.95/781,513,100,695.05 = 483,860,391,802.20/x
  3. Step 3: Cross multiply
    518,418,299,420.95x = 781,513,100,695.05 × 483,860,391,802.20
  4. Step 4: Simplify right side
    518,418,299,420.95x = 378,143,235,100,859,130,970,112
  5. Step 5: Solve for x
    x = 378,143,235,100,859,130,970,112/518,418,299,420.95
  6. Step 6: Final answer
    x = 729,417,220,656.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.