Home / 852,145,425.90-1,278,218,138.85-306,816,101.10

Finding the Fourth Proportional to 852,145,425.90, 1,278,218,138.85 and 306,816,101.10

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Solution

The fourth proportional to 852,145,425.90, 1,278,218,138.85 and 306,816,101.10 is: 460,224,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,145,425.90 : 1,278,218,138.85 = 306,816,101.10 : x
  2. Step 2: Convert to fraction form
    852,145,425.90/1,278,218,138.85 = 306,816,101.10/x
  3. Step 3: Cross multiply
    852,145,425.90x = 1,278,218,138.85 × 306,816,101.10
  4. Step 4: Simplify right side
    852,145,425.90x = 392,177,905,717,255,424
  5. Step 5: Solve for x
    x = 392,177,905,717,255,424/852,145,425.90
  6. Step 6: Final answer
    x = 460,224,151.65

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Double scale
Find fourth proportional to 852,145,426.90, 1,278,218,140.35 and 306,816,102.10
Similar ratio
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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.