Home / 99,836,165.20-149,782,241.40-42,355,973.20

Finding the Fourth Proportional to 99,836,165.20, 149,782,241.40 and 42,355,973.20

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Solution

The fourth proportional to 99,836,165.20, 149,782,241.40 and 42,355,973.20 is: 63,545,836.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,836,165.20 : 149,782,241.40 = 42,355,973.20 : x
  2. Step 2: Convert to fraction form
    99,836,165.20/149,782,241.40 = 42,355,973.20/x
  3. Step 3: Cross multiply
    99,836,165.20x = 149,782,241.40 × 42,355,973.20
  4. Step 4: Simplify right side
    99,836,165.20x = 6,344,172,602,574,331
  5. Step 5: Solve for x
    x = 6,344,172,602,574,331/99,836,165.20
  6. Step 6: Final answer
    x = 63,545,836.22

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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.