Home / 822,547,644.59-1,234,025,678.00-408,218,919.95

Finding the Fourth Proportional to 822,547,644.59, 1,234,025,678.00 and 408,218,919.95

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Solution

The fourth proportional to 822,547,644.59, 1,234,025,678.00 and 408,218,919.95 is: 612,429,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,547,644.59 : 1,234,025,678.00 = 408,218,919.95 : x
  2. Step 2: Convert to fraction form
    822,547,644.59/1,234,025,678.00 = 408,218,919.95/x
  3. Step 3: Cross multiply
    822,547,644.59x = 1,234,025,678.00 × 408,218,919.95
  4. Step 4: Simplify right side
    822,547,644.59x = 503,752,629,458,576,896
  5. Step 5: Solve for x
    x = 503,752,629,458,576,896/822,547,644.59
  6. Step 6: Final answer
    x = 612,429,727.05

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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.