Home / 138,654,396-191,340,727.61-76,773,405.96

Finding the Fourth Proportional to 138,654,396, 191,340,727.61 and 76,773,405.96

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Solution

The fourth proportional to 138,654,396, 191,340,727.61 and 76,773,405.96 is: 105,946,005.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,654,396 : 191,340,727.61 = 76,773,405.96 : x
  2. Step 2: Convert to fraction form
    138,654,396/191,340,727.61 = 76,773,405.96/x
  3. Step 3: Cross multiply
    138,654,396x = 191,340,727.61 × 76,773,405.96
  4. Step 4: Simplify right side
    138,654,396x = 14,689,879,357,100,442
  5. Step 5: Solve for x
    x = 14,689,879,357,100,442/138,654,396
  6. Step 6: Final answer
    x = 105,946,005.18

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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.