Home / 72,773,560.32-100,424,876.34-39,733,200.84

Finding the Fourth Proportional to 72,773,560.32, 100,424,876.34 and 39,733,200.84

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Solution

The fourth proportional to 72,773,560.32, 100,424,876.34 and 39,733,200.84 is: 54,830,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,773,560.32 : 100,424,876.34 = 39,733,200.84 : x
  2. Step 2: Convert to fraction form
    72,773,560.32/100,424,876.34 = 39,733,200.84/x
  3. Step 3: Cross multiply
    72,773,560.32x = 100,424,876.34 × 39,733,200.84
  4. Step 4: Simplify right side
    72,773,560.32x = 3,990,201,780,949,384.50
  5. Step 5: Solve for x
    x = 3,990,201,780,949,384.50/72,773,560.32
  6. Step 6: Final answer
    x = 54,830,377.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.