Home / 658,940,019.29-909,334,731.17-361,587,236.54

Finding the Fourth Proportional to 658,940,019.29, 909,334,731.17 and 361,587,236.54

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Solution

The fourth proportional to 658,940,019.29, 909,334,731.17 and 361,587,236.54 is: 498,989,017.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,940,019.29 : 909,334,731.17 = 361,587,236.54 : x
  2. Step 2: Convert to fraction form
    658,940,019.29/909,334,731.17 = 361,587,236.54/x
  3. Step 3: Cross multiply
    658,940,019.29x = 909,334,731.17 × 361,587,236.54
  4. Step 4: Simplify right side
    658,940,019.29x = 328,803,832,527,249,472
  5. Step 5: Solve for x
    x = 328,803,832,527,249,472/658,940,019.29
  6. Step 6: Final answer
    x = 498,989,017.06

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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.