Home / 615,083,134.60-921,281,009.10-477,690,545.80

Finding the Fourth Proportional to 615,083,134.60, 921,281,009.10 and 477,690,545.80

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Solution

The fourth proportional to 615,083,134.60, 921,281,009.10 and 477,690,545.80 is: 715,492,269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,083,134.60 : 921,281,009.10 = 477,690,545.80 : x
  2. Step 2: Convert to fraction form
    615,083,134.60/921,281,009.10 = 477,690,545.80/x
  3. Step 3: Cross multiply
    615,083,134.60x = 921,281,009.10 × 477,690,545.80
  4. Step 4: Simplify right side
    615,083,134.60x = 440,087,228,072,153,792
  5. Step 5: Solve for x
    x = 440,087,228,072,153,792/615,083,134.60
  6. Step 6: Final answer
    x = 715,492,269.77

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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.