Home / 91,995,416.80-137,993,125.20-86,326,712.80

Finding the Fourth Proportional to 91,995,416.80, 137,993,125.20 and 86,326,712.80

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Solution

The fourth proportional to 91,995,416.80, 137,993,125.20 and 86,326,712.80 is: 129,490,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,995,416.80 : 137,993,125.20 = 86,326,712.80 : x
  2. Step 2: Convert to fraction form
    91,995,416.80/137,993,125.20 = 86,326,712.80/x
  3. Step 3: Cross multiply
    91,995,416.80x = 137,993,125.20 × 86,326,712.80
  4. Step 4: Simplify right side
    91,995,416.80x = 11,912,492,887,514,842
  5. Step 5: Solve for x
    x = 11,912,492,887,514,842/91,995,416.80
  6. Step 6: Final answer
    x = 129,490,069.20

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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.