Home / 429,016,507.70-643,524,761.55-118,123,522.70

Finding the Fourth Proportional to 429,016,507.70, 643,524,761.55 and 118,123,522.70

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Solution

The fourth proportional to 429,016,507.70, 643,524,761.55 and 118,123,522.70 is: 177,185,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,016,507.70 : 643,524,761.55 = 118,123,522.70 : x
  2. Step 2: Convert to fraction form
    429,016,507.70/643,524,761.55 = 118,123,522.70/x
  3. Step 3: Cross multiply
    429,016,507.70x = 643,524,761.55 × 118,123,522.70
  4. Step 4: Simplify right side
    429,016,507.70x = 76,015,411,778,963,504
  5. Step 5: Solve for x
    x = 76,015,411,778,963,504/429,016,507.70
  6. Step 6: Final answer
    x = 177,185,284.05

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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.