Home / 47,378,139.40-71,120,353.20-36,643,031.20

Finding the Fourth Proportional to 47,378,139.40, 71,120,353.20 and 36,643,031.20

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Solution

The fourth proportional to 47,378,139.40, 71,120,353.20 and 36,643,031.20 is: 55,005,649.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,378,139.40 : 71,120,353.20 = 36,643,031.20 : x
  2. Step 2: Convert to fraction form
    47,378,139.40/71,120,353.20 = 36,643,031.20/x
  3. Step 3: Cross multiply
    47,378,139.40x = 71,120,353.20 × 36,643,031.20
  4. Step 4: Simplify right side
    47,378,139.40x = 2,606,065,321,262,620
  5. Step 5: Solve for x
    x = 2,606,065,321,262,620/47,378,139.40
  6. Step 6: Final answer
    x = 55,005,649.32

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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.