Home / 72,695,344.80-109,043,017.20-52,288,010.40

Finding the Fourth Proportional to 72,695,344.80, 109,043,017.20 and 52,288,010.40

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Solution

The fourth proportional to 72,695,344.80, 109,043,017.20 and 52,288,010.40 is: 78,432,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,695,344.80 : 109,043,017.20 = 52,288,010.40 : x
  2. Step 2: Convert to fraction form
    72,695,344.80/109,043,017.20 = 52,288,010.40/x
  3. Step 3: Cross multiply
    72,695,344.80x = 109,043,017.20 × 52,288,010.40
  4. Step 4: Simplify right side
    72,695,344.80x = 5,701,642,417,400,979
  5. Step 5: Solve for x
    x = 5,701,642,417,400,979/72,695,344.80
  6. Step 6: Final answer
    x = 78,432,015.60

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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.