Home / 130,398,691.19-179,946,444.65-71,661,285.63

Finding the Fourth Proportional to 130,398,691.19, 179,946,444.65 and 71,661,285.63

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Solution

The fourth proportional to 130,398,691.19, 179,946,444.65 and 71,661,285.63 is: 98,890,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,398,691.19 : 179,946,444.65 = 71,661,285.63 : x
  2. Step 2: Convert to fraction form
    130,398,691.19/179,946,444.65 = 71,661,285.63/x
  3. Step 3: Cross multiply
    130,398,691.19x = 179,946,444.65 × 71,661,285.63
  4. Step 4: Simplify right side
    130,398,691.19x = 12,895,193,567,808,328
  5. Step 5: Solve for x
    x = 12,895,193,567,808,328/130,398,691.19
  6. Step 6: Final answer
    x = 98,890,513.78

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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.