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Finding the Fourth Proportional to 249,318,691.80, 373,978,037.70 and 166,095,031.20

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Solution

The fourth proportional to 249,318,691.80, 373,978,037.70 and 166,095,031.20 is: 249,142,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,318,691.80 : 373,978,037.70 = 166,095,031.20 : x
  2. Step 2: Convert to fraction form
    249,318,691.80/373,978,037.70 = 166,095,031.20/x
  3. Step 3: Cross multiply
    249,318,691.80x = 373,978,037.70 × 166,095,031.20
  4. Step 4: Simplify right side
    249,318,691.80x = 62,115,893,839,896,272
  5. Step 5: Solve for x
    x = 62,115,893,839,896,272/249,318,691.80
  6. Step 6: Final answer
    x = 249,142,546.80

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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.