Home / 109,116,776.73-150,778,124.09-77,700,283.20

Finding the Fourth Proportional to 109,116,776.73, 150,778,124.09 and 77,700,283.20

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Solution

The fourth proportional to 109,116,776.73, 150,778,124.09 and 77,700,283.20 is: 107,366,651.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,116,776.73 : 150,778,124.09 = 77,700,283.20 : x
  2. Step 2: Convert to fraction form
    109,116,776.73/150,778,124.09 = 77,700,283.20/x
  3. Step 3: Cross multiply
    109,116,776.73x = 150,778,124.09 × 77,700,283.20
  4. Step 4: Simplify right side
    109,116,776.73x = 11,715,502,942,157,744
  5. Step 5: Solve for x
    x = 11,715,502,942,157,744/109,116,776.73
  6. Step 6: Final answer
    x = 107,366,651.52

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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.