Home / 840,342,563.52-1,159,866,229.12-492,774,025.92

Finding the Fourth Proportional to 840,342,563.52, 1,159,866,229.12 and 492,774,025.92

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Solution

The fourth proportional to 840,342,563.52, 1,159,866,229.12 and 492,774,025.92 is: 680,141,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,342,563.52 : 1,159,866,229.12 = 492,774,025.92 : x
  2. Step 2: Convert to fraction form
    840,342,563.52/1,159,866,229.12 = 492,774,025.92/x
  3. Step 3: Cross multiply
    840,342,563.52x = 1,159,866,229.12 × 492,774,025.92
  4. Step 4: Simplify right side
    840,342,563.52x = 571,551,951,252,111,488
  5. Step 5: Solve for x
    x = 571,551,951,252,111,488/840,342,563.52
  6. Step 6: Final answer
    x = 680,141,618.51

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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.