Home / 280,091,770.40-419,854,220.40-165,017,079.20

Finding the Fourth Proportional to 280,091,770.40, 419,854,220.40 and 165,017,079.20

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Solution

The fourth proportional to 280,091,770.40, 419,854,220.40 and 165,017,079.20 is: 247,358,631.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,091,770.40 : 419,854,220.40 = 165,017,079.20 : x
  2. Step 2: Convert to fraction form
    280,091,770.40/419,854,220.40 = 165,017,079.20/x
  3. Step 3: Cross multiply
    280,091,770.40x = 419,854,220.40 × 165,017,079.20
  4. Step 4: Simplify right side
    280,091,770.40x = 69,283,117,140,201,048
  5. Step 5: Solve for x
    x = 69,283,117,140,201,048/280,091,770.40
  6. Step 6: Final answer
    x = 247,358,631.93

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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.