Home / 28,256,541.60-42,384,812.40-18,682,730.40

Finding the Fourth Proportional to 28,256,541.60, 42,384,812.40 and 18,682,730.40

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Solution

The fourth proportional to 28,256,541.60, 42,384,812.40 and 18,682,730.40 is: 28,024,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,541.60 : 42,384,812.40 = 18,682,730.40 : x
  2. Step 2: Convert to fraction form
    28,256,541.60/42,384,812.40 = 18,682,730.40/x
  3. Step 3: Cross multiply
    28,256,541.60x = 42,384,812.40 × 18,682,730.40
  4. Step 4: Simplify right side
    28,256,541.60x = 791,864,023,123,776.88
  5. Step 5: Solve for x
    x = 791,864,023,123,776.88/28,256,541.60
  6. Step 6: Final answer
    x = 28,024,095.60

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1.5x scale

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.