Home / 21,947,919.60-32,921,879.40-9,980,655.60

Finding the Fourth Proportional to 21,947,919.60, 32,921,879.40 and 9,980,655.60

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Solution

The fourth proportional to 21,947,919.60, 32,921,879.40 and 9,980,655.60 is: 14,970,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947,919.60 : 32,921,879.40 = 9,980,655.60 : x
  2. Step 2: Convert to fraction form
    21,947,919.60/32,921,879.40 = 9,980,655.60/x
  3. Step 3: Cross multiply
    21,947,919.60x = 32,921,879.40 × 9,980,655.60
  4. Step 4: Simplify right side
    21,947,919.60x = 328,581,939,996,134.62
  5. Step 5: Solve for x
    x = 328,581,939,996,134.62/21,947,919.60
  6. Step 6: Final answer
    x = 14,970,983.40

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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.