Home / 840,492,759.90-1,159,867,901.24-464,165,271.18

Finding the Fourth Proportional to 840,492,759.90, 1,159,867,901.24 and 464,165,271.18

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Solution

The fourth proportional to 840,492,759.90, 1,159,867,901.24 and 464,165,271.18 is: 640,541,387.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,492,759.90 : 1,159,867,901.24 = 464,165,271.18 : x
  2. Step 2: Convert to fraction form
    840,492,759.90/1,159,867,901.24 = 464,165,271.18/x
  3. Step 3: Cross multiply
    840,492,759.90x = 1,159,867,901.24 × 464,165,271.18
  4. Step 4: Simplify right side
    840,492,759.90x = 538,370,398,912,042,048
  5. Step 5: Solve for x
    x = 538,370,398,912,042,048/840,492,759.90
  6. Step 6: Final answer
    x = 640,541,387.86

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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.