Home / 136,606,909.05-188,522,002.53-77,868,506.79

Finding the Fourth Proportional to 136,606,909.05, 188,522,002.53 and 77,868,506.79

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Solution

The fourth proportional to 136,606,909.05, 188,522,002.53 and 77,868,506.79 is: 107,461,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,606,909.05 : 188,522,002.53 = 77,868,506.79 : x
  2. Step 2: Convert to fraction form
    136,606,909.05/188,522,002.53 = 77,868,506.79/x
  3. Step 3: Cross multiply
    136,606,909.05x = 188,522,002.53 × 77,868,506.79
  4. Step 4: Simplify right side
    136,606,909.05x = 14,679,926,834,071,704
  5. Step 5: Solve for x
    x = 14,679,926,834,071,704/136,606,909.05
  6. Step 6: Final answer
    x = 107,461,086.24

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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.