Home / 157,736,721.42-217,665,271.55-87,171,487.22

Finding the Fourth Proportional to 157,736,721.42, 217,665,271.55 and 87,171,487.22

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Solution

The fourth proportional to 157,736,721.42, 217,665,271.55 and 87,171,487.22 is: 120,290,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736,721.42 : 217,665,271.55 = 87,171,487.22 : x
  2. Step 2: Convert to fraction form
    157,736,721.42/217,665,271.55 = 87,171,487.22/x
  3. Step 3: Cross multiply
    157,736,721.42x = 217,665,271.55 × 87,171,487.22
  4. Step 4: Simplify right side
    157,736,721.42x = 18,974,205,435,634,472
  5. Step 5: Solve for x
    x = 18,974,205,435,634,472/157,736,721.42
  6. Step 6: Final answer
    x = 120,290,350.05

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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.