Home / 53,992,909.20-80,996,467.80-19,938,176.40

Finding the Fourth Proportional to 53,992,909.20, 80,996,467.80 and 19,938,176.40

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Solution

The fourth proportional to 53,992,909.20, 80,996,467.80 and 19,938,176.40 is: 29,909,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,992,909.20 : 80,996,467.80 = 19,938,176.40 : x
  2. Step 2: Convert to fraction form
    53,992,909.20/80,996,467.80 = 19,938,176.40/x
  3. Step 3: Cross multiply
    53,992,909.20x = 80,996,467.80 × 19,938,176.40
  4. Step 4: Simplify right side
    53,992,909.20x = 1,614,921,862,773,319.75
  5. Step 5: Solve for x
    x = 1,614,921,862,773,319.75/53,992,909.20
  6. Step 6: Final answer
    x = 29,909,887.92

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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.