Home / 788,541,065.92-1,088,142,589.76-431,238,278.72

Finding the Fourth Proportional to 788,541,065.92, 1,088,142,589.76 and 431,238,278.72

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Solution

The fourth proportional to 788,541,065.92, 1,088,142,589.76 and 431,238,278.72 is: 595,084,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,541,065.92 : 1,088,142,589.76 = 431,238,278.72 : x
  2. Step 2: Convert to fraction form
    788,541,065.92/1,088,142,589.76 = 431,238,278.72/x
  3. Step 3: Cross multiply
    788,541,065.92x = 1,088,142,589.76 × 431,238,278.72
  4. Step 4: Simplify right side
    788,541,065.92x = 469,248,737,410,025,536
  5. Step 5: Solve for x
    x = 469,248,737,410,025,536/788,541,065.92
  6. Step 6: Final answer
    x = 595,084,717.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.