Home / 28,360,860.20-42,541,290.30-8,168,143.40

Finding the Fourth Proportional to 28,360,860.20, 42,541,290.30 and 8,168,143.40

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Solution

The fourth proportional to 28,360,860.20, 42,541,290.30 and 8,168,143.40 is: 12,252,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360,860.20 : 42,541,290.30 = 8,168,143.40 : x
  2. Step 2: Convert to fraction form
    28,360,860.20/42,541,290.30 = 8,168,143.40/x
  3. Step 3: Cross multiply
    28,360,860.20x = 42,541,290.30 × 8,168,143.40
  4. Step 4: Simplify right side
    28,360,860.20x = 347,483,359,591,429
  5. Step 5: Solve for x
    x = 347,483,359,591,429/28,360,860.20
  6. Step 6: Final answer
    x = 12,252,215.10

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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.