Home / 142,441,729.70-213,886,543.35-81,975,553.70

Finding the Fourth Proportional to 142,441,729.70, 213,886,543.35 and 81,975,553.70

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Solution

The fourth proportional to 142,441,729.70, 213,886,543.35 and 81,975,553.70 is: 123,092,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,441,729.70 : 213,886,543.35 = 81,975,553.70 : x
  2. Step 2: Convert to fraction form
    142,441,729.70/213,886,543.35 = 81,975,553.70/x
  3. Step 3: Cross multiply
    142,441,729.70x = 213,886,543.35 × 81,975,553.70
  4. Step 4: Simplify right side
    142,441,729.70x = 17,533,467,820,095,304
  5. Step 5: Solve for x
    x = 17,533,467,820,095,304/142,441,729.70
  6. Step 6: Final answer
    x = 123,092,213.62

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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.