Home / 141,721,731.20-212,582,596.80-45,983,619.20

Finding the Fourth Proportional to 141,721,731.20, 212,582,596.80 and 45,983,619.20

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Solution

The fourth proportional to 141,721,731.20, 212,582,596.80 and 45,983,619.20 is: 68,975,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,721,731.20 : 212,582,596.80 = 45,983,619.20 : x
  2. Step 2: Convert to fraction form
    141,721,731.20/212,582,596.80 = 45,983,619.20/x
  3. Step 3: Cross multiply
    141,721,731.20x = 212,582,596.80 × 45,983,619.20
  4. Step 4: Simplify right side
    141,721,731.20x = 9,775,317,179,798,340
  5. Step 5: Solve for x
    x = 9,775,317,179,798,340/141,721,731.20
  6. Step 6: Final answer
    x = 68,975,428.80

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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.