Home / 47,689,320.80-71,543,312.40-20,395,560.80

Finding the Fourth Proportional to 47,689,320.80, 71,543,312.40 and 20,395,560.80

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Solution

The fourth proportional to 47,689,320.80, 71,543,312.40 and 20,395,560.80 is: 30,597,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,689,320.80 : 71,543,312.40 = 20,395,560.80 : x
  2. Step 2: Convert to fraction form
    47,689,320.80/71,543,312.40 = 20,395,560.80/x
  3. Step 3: Cross multiply
    47,689,320.80x = 71,543,312.40 × 20,395,560.80
  4. Step 4: Simplify right side
    47,689,320.80x = 1,459,165,977,887,594
  5. Step 5: Solve for x
    x = 1,459,165,977,887,594/47,689,320.80
  6. Step 6: Final answer
    x = 30,597,331.93

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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.