Home / 143,989,817.40-215,984,726.10-115,292,003.40

Finding the Fourth Proportional to 143,989,817.40, 215,984,726.10 and 115,292,003.40

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Solution

The fourth proportional to 143,989,817.40, 215,984,726.10 and 115,292,003.40 is: 172,938,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,989,817.40 : 215,984,726.10 = 115,292,003.40 : x
  2. Step 2: Convert to fraction form
    143,989,817.40/215,984,726.10 = 115,292,003.40/x
  3. Step 3: Cross multiply
    143,989,817.40x = 215,984,726.10 × 115,292,003.40
  4. Step 4: Simplify right side
    143,989,817.40x = 24,901,311,775,869,268
  5. Step 5: Solve for x
    x = 24,901,311,775,869,268/143,989,817.40
  6. Step 6: Final answer
    x = 172,938,005.10

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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.