Home / 711,376,934.21-1,068,286,545.56-436,641,423.38

Finding the Fourth Proportional to 711,376,934.21, 1,068,286,545.56 and 436,641,423.38

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Solution

The fourth proportional to 711,376,934.21, 1,068,286,545.56 and 436,641,423.38 is: 655,711,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,376,934.21 : 1,068,286,545.56 = 436,641,423.38 : x
  2. Step 2: Convert to fraction form
    711,376,934.21/1,068,286,545.56 = 436,641,423.38/x
  3. Step 3: Cross multiply
    711,376,934.21x = 1,068,286,545.56 × 436,641,423.38
  4. Step 4: Simplify right side
    711,376,934.21x = 466,458,157,826,771,776
  5. Step 5: Solve for x
    x = 466,458,157,826,771,776/711,376,934.21
  6. Step 6: Final answer
    x = 655,711,670.42

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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.