Home / 99,432,398.24-137,220,985.79-55,379,416.67

Finding the Fourth Proportional to 99,432,398.24, 137,220,985.79 and 55,379,416.67

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Solution

The fourth proportional to 99,432,398.24, 137,220,985.79 and 55,379,416.67 is: 76,425,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,432,398.24 : 137,220,985.79 = 55,379,416.67 : x
  2. Step 2: Convert to fraction form
    99,432,398.24/137,220,985.79 = 55,379,416.67/x
  3. Step 3: Cross multiply
    99,432,398.24x = 137,220,985.79 × 55,379,416.67
  4. Step 4: Simplify right side
    99,432,398.24x = 7,599,218,148,003,596
  5. Step 5: Solve for x
    x = 7,599,218,148,003,596/99,432,398.24
  6. Step 6: Final answer
    x = 76,425,976.67

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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.