Home / 99,391,030.66-148,892,594.29-77,428,574.53

Finding the Fourth Proportional to 99,391,030.66, 148,892,594.29 and 77,428,574.53

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Solution

The fourth proportional to 99,391,030.66, 148,892,594.29 and 77,428,574.53 is: 115,991,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391,030.66 : 148,892,594.29 = 77,428,574.53 : x
  2. Step 2: Convert to fraction form
    99,391,030.66/148,892,594.29 = 77,428,574.53/x
  3. Step 3: Cross multiply
    99,391,030.66x = 148,892,594.29 × 77,428,574.53
  4. Step 4: Simplify right side
    99,391,030.66x = 11,528,541,333,948,316
  5. Step 5: Solve for x
    x = 11,528,541,333,948,316/99,391,030.66
  6. Step 6: Final answer
    x = 115,991,767.64

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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.