Home / 138,611,767.51-191,285,750.79-76,733,139.43

Finding the Fourth Proportional to 138,611,767.51, 191,285,750.79 and 76,733,139.43

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Solution

The fourth proportional to 138,611,767.51, 191,285,750.79 and 76,733,139.43 is: 105,892,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611,767.51 : 191,285,750.79 = 76,733,139.43 : x
  2. Step 2: Convert to fraction form
    138,611,767.51/191,285,750.79 = 76,733,139.43/x
  3. Step 3: Cross multiply
    138,611,767.51x = 191,285,750.79 × 76,733,139.43
  4. Step 4: Simplify right side
    138,611,767.51x = 14,677,956,186,341,304
  5. Step 5: Solve for x
    x = 14,677,956,186,341,304/138,611,767.51
  6. Step 6: Final answer
    x = 105,892,569.22

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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.