Home / 265,734,078.30-398,601,117.45-162,421,947.90

Finding the Fourth Proportional to 265,734,078.30, 398,601,117.45 and 162,421,947.90

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Solution

The fourth proportional to 265,734,078.30, 398,601,117.45 and 162,421,947.90 is: 243,632,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,734,078.30 : 398,601,117.45 = 162,421,947.90 : x
  2. Step 2: Convert to fraction form
    265,734,078.30/398,601,117.45 = 162,421,947.90/x
  3. Step 3: Cross multiply
    265,734,078.30x = 398,601,117.45 × 162,421,947.90
  4. Step 4: Simplify right side
    265,734,078.30x = 64,741,569,931,345,680
  5. Step 5: Solve for x
    x = 64,741,569,931,345,680/265,734,078.30
  6. Step 6: Final answer
    x = 243,632,921.85

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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.