Home / 138,788,252.88-191,528,922.24-76,909,624.80

Finding the Fourth Proportional to 138,788,252.88, 191,528,922.24 and 76,909,624.80

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Solution

The fourth proportional to 138,788,252.88, 191,528,922.24 and 76,909,624.80 is: 106,135,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,788,252.88 : 191,528,922.24 = 76,909,624.80 : x
  2. Step 2: Convert to fraction form
    138,788,252.88/191,528,922.24 = 76,909,624.80/x
  3. Step 3: Cross multiply
    138,788,252.88x = 191,528,922.24 × 76,909,624.80
  4. Step 4: Simplify right side
    138,788,252.88x = 14,730,417,547,826,776
  5. Step 5: Solve for x
    x = 14,730,417,547,826,776/138,788,252.88
  6. Step 6: Final answer
    x = 106,135,910.22

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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.