Home / 80,876,339.40-121,314,509.10-57,918,088.20

Finding the Fourth Proportional to 80,876,339.40, 121,314,509.10 and 57,918,088.20

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Solution

The fourth proportional to 80,876,339.40, 121,314,509.10 and 57,918,088.20 is: 86,877,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,876,339.40 : 121,314,509.10 = 57,918,088.20 : x
  2. Step 2: Convert to fraction form
    80,876,339.40/121,314,509.10 = 57,918,088.20/x
  3. Step 3: Cross multiply
    80,876,339.40x = 121,314,509.10 × 57,918,088.20
  4. Step 4: Simplify right side
    80,876,339.40x = 7,026,304,437,993,503
  5. Step 5: Solve for x
    x = 7,026,304,437,993,503/80,876,339.40
  6. Step 6: Final answer
    x = 86,877,132.30

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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.