Home / 285,994,013.42-428,927,179.17-132,620,140.82

Finding the Fourth Proportional to 285,994,013.42, 428,927,179.17 and 132,620,140.82

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Solution

The fourth proportional to 285,994,013.42, 428,927,179.17 and 132,620,140.82 is: 198,900,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,994,013.42 : 428,927,179.17 = 132,620,140.82 : x
  2. Step 2: Convert to fraction form
    285,994,013.42/428,927,179.17 = 132,620,140.82/x
  3. Step 3: Cross multiply
    285,994,013.42x = 428,927,179.17 × 132,620,140.82
  4. Step 4: Simplify right side
    285,994,013.42x = 56,884,382,903,050,768
  5. Step 5: Solve for x
    x = 56,884,382,903,050,768/285,994,013.42
  6. Step 6: Final answer
    x = 198,900,607.12

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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.