Home / 191,192,265.65-286,787,961.02-81,946,600.13

Finding the Fourth Proportional to 191,192,265.65, 286,787,961.02 and 81,946,600.13

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Solution

The fourth proportional to 191,192,265.65, 286,787,961.02 and 81,946,600.13 is: 122,919,712.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,192,265.65 : 286,787,961.02 = 81,946,600.13 : x
  2. Step 2: Convert to fraction form
    191,192,265.65/286,787,961.02 = 81,946,600.13/x
  3. Step 3: Cross multiply
    191,192,265.65x = 286,787,961.02 × 81,946,600.13
  4. Step 4: Simplify right side
    191,192,265.65x = 23,501,298,361,960,292
  5. Step 5: Solve for x
    x = 23,501,298,361,960,292/191,192,265.65
  6. Step 6: Final answer
    x = 122,919,712.69

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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.