Home / 390,027,444.12-584,871,083.98-147,520,287

Finding the Fourth Proportional to 390,027,444.12, 584,871,083.98 and 147,520,287

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Solution

The fourth proportional to 390,027,444.12, 584,871,083.98 and 147,520,287 is: 221,216,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,027,444.12 : 584,871,083.98 = 147,520,287 : x
  2. Step 2: Convert to fraction form
    390,027,444.12/584,871,083.98 = 147,520,287/x
  3. Step 3: Cross multiply
    390,027,444.12x = 584,871,083.98 × 147,520,287
  4. Step 4: Simplify right side
    390,027,444.12x = 86,280,350,166,730,704
  5. Step 5: Solve for x
    x = 86,280,350,166,730,704/390,027,444.12
  6. Step 6: Final answer
    x = 221,216,100.22

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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.