Home / 157,128,305.40-235,692,458.10-89,103,857.40

Finding the Fourth Proportional to 157,128,305.40, 235,692,458.10 and 89,103,857.40

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Solution

The fourth proportional to 157,128,305.40, 235,692,458.10 and 89,103,857.40 is: 133,655,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,128,305.40 : 235,692,458.10 = 89,103,857.40 : x
  2. Step 2: Convert to fraction form
    157,128,305.40/235,692,458.10 = 89,103,857.40/x
  3. Step 3: Cross multiply
    157,128,305.40x = 235,692,458.10 × 89,103,857.40
  4. Step 4: Simplify right side
    157,128,305.40x = 21,001,107,176,797,876
  5. Step 5: Solve for x
    x = 21,001,107,176,797,876/157,128,305.40
  6. Step 6: Final answer
    x = 133,655,786.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.