Home / 91,651,818.60-137,477,727.90-81,448,151.40

Finding the Fourth Proportional to 91,651,818.60, 137,477,727.90 and 81,448,151.40

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Solution

The fourth proportional to 91,651,818.60, 137,477,727.90 and 81,448,151.40 is: 122,172,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,651,818.60 : 137,477,727.90 = 81,448,151.40 : x
  2. Step 2: Convert to fraction form
    91,651,818.60/137,477,727.90 = 81,448,151.40/x
  3. Step 3: Cross multiply
    91,651,818.60x = 137,477,727.90 × 81,448,151.40
  4. Step 4: Simplify right side
    91,651,818.60x = 11,197,306,796,127,206
  5. Step 5: Solve for x
    x = 11,197,306,796,127,206/91,651,818.60
  6. Step 6: Final answer
    x = 122,172,227.10

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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.