Home / 110,917,356.72-153,014,372.28-71,771,770.32

Finding the Fourth Proportional to 110,917,356.72, 153,014,372.28 and 71,771,770.32

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Solution

The fourth proportional to 110,917,356.72, 153,014,372.28 and 71,771,770.32 is: 99,011,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,917,356.72 : 153,014,372.28 = 71,771,770.32 : x
  2. Step 2: Convert to fraction form
    110,917,356.72/153,014,372.28 = 71,771,770.32/x
  3. Step 3: Cross multiply
    110,917,356.72x = 153,014,372.28 × 71,771,770.32
  4. Step 4: Simplify right side
    110,917,356.72x = 10,982,112,382,939,134
  5. Step 5: Solve for x
    x = 10,982,112,382,939,134/110,917,356.72
  6. Step 6: Final answer
    x = 99,011,666.95

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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.