Home / 390,027,445.12-584,871,085.48-147,520,288

Finding the Fourth Proportional to 390,027,445.12, 584,871,085.48 and 147,520,288

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Solution

The fourth proportional to 390,027,445.12, 584,871,085.48 and 147,520,288 is: 221,216,101.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,027,445.12 : 584,871,085.48 = 147,520,288 : x
  2. Step 2: Convert to fraction form
    390,027,445.12/584,871,085.48 = 147,520,288/x
  3. Step 3: Cross multiply
    390,027,445.12x = 584,871,085.48 × 147,520,288
  4. Step 4: Simplify right side
    390,027,445.12x = 86,280,350,972,882,224
  5. Step 5: Solve for x
    x = 86,280,350,972,882,224/390,027,445.12
  6. Step 6: Final answer
    x = 221,216,101.72

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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.