Home / 390,027,456.12-584,871,101.94-147,520,299

Finding the Fourth Proportional to 390,027,456.12, 584,871,101.94 and 147,520,299

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Solution

The fourth proportional to 390,027,456.12, 584,871,101.94 and 147,520,299 is: 221,216,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,027,456.12 : 584,871,101.94 = 147,520,299 : x
  2. Step 2: Convert to fraction form
    390,027,456.12/584,871,101.94 = 147,520,299/x
  3. Step 3: Cross multiply
    390,027,456.12x = 584,871,101.94 × 147,520,299
  4. Step 4: Simplify right side
    390,027,456.12x = 86,280,359,834,648,288
  5. Step 5: Solve for x
    x = 86,280,359,834,648,288/390,027,456.12
  6. Step 6: Final answer
    x = 221,216,118.20

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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.