Home / 120,744,820.80-181,117,231.20-86,984,539.20

Finding the Fourth Proportional to 120,744,820.80, 181,117,231.20 and 86,984,539.20

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Solution

The fourth proportional to 120,744,820.80, 181,117,231.20 and 86,984,539.20 is: 130,476,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,744,820.80 : 181,117,231.20 = 86,984,539.20 : x
  2. Step 2: Convert to fraction form
    120,744,820.80/181,117,231.20 = 86,984,539.20/x
  3. Step 3: Cross multiply
    120,744,820.80x = 181,117,231.20 × 86,984,539.20
  4. Step 4: Simplify right side
    120,744,820.80x = 15,754,398,897,111,862
  5. Step 5: Solve for x
    x = 15,754,398,897,111,862/120,744,820.80
  6. Step 6: Final answer
    x = 130,476,808.80

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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.