Home / 28,312,512.30-42,468,768.45-15,528,077.10

Finding the Fourth Proportional to 28,312,512.30, 42,468,768.45 and 15,528,077.10

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Solution

The fourth proportional to 28,312,512.30, 42,468,768.45 and 15,528,077.10 is: 23,292,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312,512.30 : 42,468,768.45 = 15,528,077.10 : x
  2. Step 2: Convert to fraction form
    28,312,512.30/42,468,768.45 = 15,528,077.10/x
  3. Step 3: Cross multiply
    28,312,512.30x = 42,468,768.45 × 15,528,077.10
  4. Step 4: Simplify right side
    28,312,512.30x = 659,458,310,833,647.50
  5. Step 5: Solve for x
    x = 659,458,310,833,647.50/28,312,512.30
  6. Step 6: Final answer
    x = 23,292,115.65

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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.