Home / 151,346,363.94-208,857,980.10-81,731,742.78

Finding the Fourth Proportional to 151,346,363.94, 208,857,980.10 and 81,731,742.78

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Solution

The fourth proportional to 151,346,363.94, 208,857,980.10 and 81,731,742.78 is: 112,789,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,346,363.94 : 208,857,980.10 = 81,731,742.78 : x
  2. Step 2: Convert to fraction form
    151,346,363.94/208,857,980.10 = 81,731,742.78/x
  3. Step 3: Cross multiply
    151,346,363.94x = 208,857,980.10 × 81,731,742.78
  4. Step 4: Simplify right side
    151,346,363.94x = 17,070,326,707,083,558
  5. Step 5: Solve for x
    x = 17,070,326,707,083,558/151,346,363.94
  6. Step 6: Final answer
    x = 112,789,803.88

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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.