Home / 427,739,964.10-641,609,946.15-155,119,624.90

Finding the Fourth Proportional to 427,739,964.10, 641,609,946.15 and 155,119,624.90

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Solution

The fourth proportional to 427,739,964.10, 641,609,946.15 and 155,119,624.90 is: 232,679,437.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,739,964.10 : 641,609,946.15 = 155,119,624.90 : x
  2. Step 2: Convert to fraction form
    427,739,964.10/641,609,946.15 = 155,119,624.90/x
  3. Step 3: Cross multiply
    427,739,964.10x = 641,609,946.15 × 155,119,624.90
  4. Step 4: Simplify right side
    427,739,964.10x = 99,526,294,178,897,200
  5. Step 5: Solve for x
    x = 99,526,294,178,897,200/427,739,964.10
  6. Step 6: Final answer
    x = 232,679,437.35

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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.