Home / 157,996,735.67-218,035,853.94-87,437,480.18

Finding the Fourth Proportional to 157,996,735.67, 218,035,853.94 and 87,437,480.18

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Solution

The fourth proportional to 157,996,735.67, 218,035,853.94 and 87,437,480.18 is: 120,663,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,996,735.67 : 218,035,853.94 = 87,437,480.18 : x
  2. Step 2: Convert to fraction form
    157,996,735.67/218,035,853.94 = 87,437,480.18/x
  3. Step 3: Cross multiply
    157,996,735.67x = 218,035,853.94 × 87,437,480.18
  4. Step 4: Simplify right side
    157,996,735.67x = 19,064,505,656,645,836
  5. Step 5: Solve for x
    x = 19,064,505,656,645,836/157,996,735.67
  6. Step 6: Final answer
    x = 120,663,921.16

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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.