Home / 840,492,760.90-1,159,867,902.62-464,165,272.18

Finding the Fourth Proportional to 840,492,760.90, 1,159,867,902.62 and 464,165,272.18

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Solution

The fourth proportional to 840,492,760.90, 1,159,867,902.62 and 464,165,272.18 is: 640,541,389.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,492,760.90 : 1,159,867,902.62 = 464,165,272.18 : x
  2. Step 2: Convert to fraction form
    840,492,760.90/1,159,867,902.62 = 464,165,272.18/x
  3. Step 3: Cross multiply
    840,492,760.90x = 1,159,867,902.62 × 464,165,272.18
  4. Step 4: Simplify right side
    840,492,760.90x = 538,370,400,712,457,984
  5. Step 5: Solve for x
    x = 538,370,400,712,457,984/840,492,760.90
  6. Step 6: Final answer
    x = 640,541,389.24

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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.