Home / 79,148,052.40-118,722,078.60-28,023,428.20

Finding the Fourth Proportional to 79,148,052.40, 118,722,078.60 and 28,023,428.20

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Solution

The fourth proportional to 79,148,052.40, 118,722,078.60 and 28,023,428.20 is: 42,035,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,148,052.40 : 118,722,078.60 = 28,023,428.20 : x
  2. Step 2: Convert to fraction form
    79,148,052.40/118,722,078.60 = 28,023,428.20/x
  3. Step 3: Cross multiply
    79,148,052.40x = 118,722,078.60 × 28,023,428.20
  4. Step 4: Simplify right side
    79,148,052.40x = 3,326,999,645,401,856.50
  5. Step 5: Solve for x
    x = 3,326,999,645,401,856.50/79,148,052.40
  6. Step 6: Final answer
    x = 42,035,142.30

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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.