Home / 72,579,200.40-108,868,800.60-59,814,118.80

Finding the Fourth Proportional to 72,579,200.40, 108,868,800.60 and 59,814,118.80

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Solution

The fourth proportional to 72,579,200.40, 108,868,800.60 and 59,814,118.80 is: 89,721,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,200.40 : 108,868,800.60 = 59,814,118.80 : x
  2. Step 2: Convert to fraction form
    72,579,200.40/108,868,800.60 = 59,814,118.80/x
  3. Step 3: Cross multiply
    72,579,200.40x = 108,868,800.60 × 59,814,118.80
  4. Step 4: Simplify right side
    72,579,200.40x = 6,511,891,372,701,911
  5. Step 5: Solve for x
    x = 6,511,891,372,701,911/72,579,200.40
  6. Step 6: Final answer
    x = 89,721,178.20

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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.