Home / 157,708,418.80-217,633,036.08-87,142,907.76

Finding the Fourth Proportional to 157,708,418.80, 217,633,036.08 and 87,142,907.76

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Solution

The fourth proportional to 157,708,418.80, 217,633,036.08 and 87,142,907.76 is: 120,254,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,708,418.80 : 217,633,036.08 = 87,142,907.76 : x
  2. Step 2: Convert to fraction form
    157,708,418.80/217,633,036.08 = 87,142,907.76/x
  3. Step 3: Cross multiply
    157,708,418.80x = 217,633,036.08 × 87,142,907.76
  4. Step 4: Simplify right side
    157,708,418.80x = 18,965,175,588,648,196
  5. Step 5: Solve for x
    x = 18,965,175,588,648,196/157,708,418.80
  6. Step 6: Final answer
    x = 120,254,680.97

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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.