Home / 138,996,744.30-191,838,531.87-77,136,953.58

Finding the Fourth Proportional to 138,996,744.30, 191,838,531.87 and 77,136,953.58

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Solution

The fourth proportional to 138,996,744.30, 191,838,531.87 and 77,136,953.58 is: 106,461,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,996,744.30 : 191,838,531.87 = 77,136,953.58 : x
  2. Step 2: Convert to fraction form
    138,996,744.30/191,838,531.87 = 77,136,953.58/x
  3. Step 3: Cross multiply
    138,996,744.30x = 191,838,531.87 × 77,136,953.58
  4. Step 4: Simplify right side
    138,996,744.30x = 14,797,839,927,711,540
  5. Step 5: Solve for x
    x = 14,797,839,927,711,540/138,996,744.30
  6. Step 6: Final answer
    x = 106,461,773.64

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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.