Home / 28,043,881.40-42,065,822.10-8,876,138.60

Finding the Fourth Proportional to 28,043,881.40, 42,065,822.10 and 8,876,138.60

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Solution

The fourth proportional to 28,043,881.40, 42,065,822.10 and 8,876,138.60 is: 13,314,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043,881.40 : 42,065,822.10 = 8,876,138.60 : x
  2. Step 2: Convert to fraction form
    28,043,881.40/42,065,822.10 = 8,876,138.60/x
  3. Step 3: Cross multiply
    28,043,881.40x = 42,065,822.10 × 8,876,138.60
  4. Step 4: Simplify right side
    28,043,881.40x = 373,382,067,282,543.06
  5. Step 5: Solve for x
    x = 373,382,067,282,543.06/28,043,881.40
  6. Step 6: Final answer
    x = 13,314,207.90

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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.