Home / 124,762,905.60-187,156,864.80-42,870,998.40

Finding the Fourth Proportional to 124,762,905.60, 187,156,864.80 and 42,870,998.40

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Solution

The fourth proportional to 124,762,905.60, 187,156,864.80 and 42,870,998.40 is: 64,310,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,762,905.60 : 187,156,864.80 = 42,870,998.40 : x
  2. Step 2: Convert to fraction form
    124,762,905.60/187,156,864.80 = 42,870,998.40/x
  3. Step 3: Cross multiply
    124,762,905.60x = 187,156,864.80 × 42,870,998.40
  4. Step 4: Simplify right side
    124,762,905.60x = 8,023,601,651,389,817
  5. Step 5: Solve for x
    x = 8,023,601,651,389,817/124,762,905.60
  6. Step 6: Final answer
    x = 64,310,795.05

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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.