Home / 75,005,638.80-112,508,458.20-21,152,950.80

Finding the Fourth Proportional to 75,005,638.80, 112,508,458.20 and 21,152,950.80

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Solution

The fourth proportional to 75,005,638.80, 112,508,458.20 and 21,152,950.80 is: 31,729,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,005,638.80 : 112,508,458.20 = 21,152,950.80 : x
  2. Step 2: Convert to fraction form
    75,005,638.80/112,508,458.20 = 21,152,950.80/x
  3. Step 3: Cross multiply
    75,005,638.80x = 112,508,458.20 × 21,152,950.80
  4. Step 4: Simplify right side
    75,005,638.80x = 2,379,885,880,888,456.50
  5. Step 5: Solve for x
    x = 2,379,885,880,888,456.50/75,005,638.80
  6. Step 6: Final answer
    x = 31,729,426.20

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1.5x scale

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.