Home / 1,013,813,772.82-1,521,360,356.76-431,547,067.78

Finding the Fourth Proportional to 1,013,813,772.82, 1,521,360,356.76 and 431,547,067.78

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Solution

The fourth proportional to 1,013,813,772.82, 1,521,360,356.76 and 431,547,067.78 is: 647,592,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,813,772.82 : 1,521,360,356.76 = 431,547,067.78 : x
  2. Step 2: Convert to fraction form
    1,013,813,772.82/1,521,360,356.76 = 431,547,067.78/x
  3. Step 3: Cross multiply
    1,013,813,772.82x = 1,521,360,356.76 × 431,547,067.78
  4. Step 4: Simplify right side
    1,013,813,772.82x = 656,538,600,996,512,640
  5. Step 5: Solve for x
    x = 656,538,600,996,512,640/1,013,813,772.82
  6. Step 6: Final answer
    x = 647,592,899.80

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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.