Home / 78,285,655.60-117,447,145.80-37,862,897.20

Finding the Fourth Proportional to 78,285,655.60, 117,447,145.80 and 37,862,897.20

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Solution

The fourth proportional to 78,285,655.60, 117,447,145.80 and 37,862,897.20 is: 56,803,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,285,655.60 : 117,447,145.80 = 37,862,897.20 : x
  2. Step 2: Convert to fraction form
    78,285,655.60/117,447,145.80 = 37,862,897.20/x
  3. Step 3: Cross multiply
    78,285,655.60x = 117,447,145.80 × 37,862,897.20
  4. Step 4: Simplify right side
    78,285,655.60x = 4,446,889,207,858,812
  5. Step 5: Solve for x
    x = 4,446,889,207,858,812/78,285,655.60
  6. Step 6: Final answer
    x = 56,803,371.88

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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.