Home / 921,752,467.69-1,272,116,981.81-564,757,161.38

Finding the Fourth Proportional to 921,752,467.69, 1,272,116,981.81 and 564,757,161.38

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Solution

The fourth proportional to 921,752,467.69, 1,272,116,981.81 and 564,757,161.38 is: 779,425,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,752,467.69 : 1,272,116,981.81 = 564,757,161.38 : x
  2. Step 2: Convert to fraction form
    921,752,467.69/1,272,116,981.81 = 564,757,161.38/x
  3. Step 3: Cross multiply
    921,752,467.69x = 1,272,116,981.81 × 564,757,161.38
  4. Step 4: Simplify right side
    921,752,467.69x = 718,437,175,587,484,928
  5. Step 5: Solve for x
    x = 718,437,175,587,484,928/921,752,467.69
  6. Step 6: Final answer
    x = 779,425,280.40

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1.5x scale

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.