Home / 138,644,510.60-207,636,675.50-80,229,045.18

Finding the Fourth Proportional to 138,644,510.60, 207,636,675.50 and 80,229,045.18

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Solution

The fourth proportional to 138,644,510.60, 207,636,675.50 and 80,229,045.18 is: 120,152,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,644,510.60 : 207,636,675.50 = 80,229,045.18 : x
  2. Step 2: Convert to fraction form
    138,644,510.60/207,636,675.50 = 80,229,045.18/x
  3. Step 3: Cross multiply
    138,644,510.60x = 207,636,675.50 × 80,229,045.18
  4. Step 4: Simplify right side
    138,644,510.60x = 16,658,492,219,714,500
  5. Step 5: Solve for x
    x = 16,658,492,219,714,500/138,644,510.60
  6. Step 6: Final answer
    x = 120,152,555.25

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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.