Home / 71,189,122.34-98,240,265.10-39,399,353.77

Finding the Fourth Proportional to 71,189,122.34, 98,240,265.10 and 39,399,353.77

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Solution

The fourth proportional to 71,189,122.34, 98,240,265.10 and 39,399,353.77 is: 54,370,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,189,122.34 : 98,240,265.10 = 39,399,353.77 : x
  2. Step 2: Convert to fraction form
    71,189,122.34/98,240,265.10 = 39,399,353.77/x
  3. Step 3: Cross multiply
    71,189,122.34x = 98,240,265.10 × 39,399,353.77
  4. Step 4: Simplify right side
    71,189,122.34x = 3,870,602,958,789,385
  5. Step 5: Solve for x
    x = 3,870,602,958,789,385/71,189,122.34
  6. Step 6: Final answer
    x = 54,370,707.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.