Home / 120,967,901.80-181,153,254.30-80,358,519.40

Finding the Fourth Proportional to 120,967,901.80, 181,153,254.30 and 80,358,519.40

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Solution

The fourth proportional to 120,967,901.80, 181,153,254.30 and 80,358,519.40 is: 120,339,421.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,967,901.80 : 181,153,254.30 = 80,358,519.40 : x
  2. Step 2: Convert to fraction form
    120,967,901.80/181,153,254.30 = 80,358,519.40/x
  3. Step 3: Cross multiply
    120,967,901.80x = 181,153,254.30 × 80,358,519.40
  4. Step 4: Simplify right side
    120,967,901.80x = 14,557,207,300,039,686
  5. Step 5: Solve for x
    x = 14,557,207,300,039,686/120,967,901.80
  6. Step 6: Final answer
    x = 120,339,421.31

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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.