Home / 822,386,732.96-1,134,710,105.16-487,689,177.20

Finding the Fourth Proportional to 822,386,732.96, 1,134,710,105.16 and 487,689,177.20

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Solution

The fourth proportional to 822,386,732.96, 1,134,710,105.16 and 487,689,177.20 is: 672,902,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,386,732.96 : 1,134,710,105.16 = 487,689,177.20 : x
  2. Step 2: Convert to fraction form
    822,386,732.96/1,134,710,105.16 = 487,689,177.20/x
  3. Step 3: Cross multiply
    822,386,732.96x = 1,134,710,105.16 × 487,689,177.20
  4. Step 4: Simplify right side
    822,386,732.96x = 553,385,837,546,005,888
  5. Step 5: Solve for x
    x = 553,385,837,546,005,888/822,386,732.96
  6. Step 6: Final answer
    x = 672,902,194.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.