Home / 72,324,188.30-99,808,130.50-39,285,080.88

Finding the Fourth Proportional to 72,324,188.30, 99,808,130.50 and 39,285,080.88

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Solution

The fourth proportional to 72,324,188.30, 99,808,130.50 and 39,285,080.88 is: 54,213,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324,188.30 : 99,808,130.50 = 39,285,080.88 : x
  2. Step 2: Convert to fraction form
    72,324,188.30/99,808,130.50 = 39,285,080.88/x
  3. Step 3: Cross multiply
    72,324,188.30x = 99,808,130.50 × 39,285,080.88
  4. Step 4: Simplify right side
    72,324,188.30x = 3,920,970,479,174,095
  5. Step 5: Solve for x
    x = 3,920,970,479,174,095/72,324,188.30
  6. Step 6: Final answer
    x = 54,213,819.35

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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.