Home / 120,744,839.80-181,117,259.70-86,984,558.20

Finding the Fourth Proportional to 120,744,839.80, 181,117,259.70 and 86,984,558.20

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Solution

The fourth proportional to 120,744,839.80, 181,117,259.70 and 86,984,558.20 is: 130,476,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,744,839.80 : 181,117,259.70 = 86,984,558.20 : x
  2. Step 2: Convert to fraction form
    120,744,839.80/181,117,259.70 = 86,984,558.20/x
  3. Step 3: Cross multiply
    120,744,839.80x = 181,117,259.70 × 86,984,558.20
  4. Step 4: Simplify right side
    120,744,839.80x = 15,754,404,817,399,164
  5. Step 5: Solve for x
    x = 15,754,404,817,399,164/120,744,839.80
  6. Step 6: Final answer
    x = 130,476,837.30

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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.