Home / 840,492,766.89-1,159,867,910.88-464,165,278.16

Finding the Fourth Proportional to 840,492,766.89, 1,159,867,910.88 and 464,165,278.16

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Solution

The fourth proportional to 840,492,766.89, 1,159,867,910.88 and 464,165,278.16 is: 640,541,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,492,766.89 : 1,159,867,910.88 = 464,165,278.16 : x
  2. Step 2: Convert to fraction form
    840,492,766.89/1,159,867,910.88 = 464,165,278.16/x
  3. Step 3: Cross multiply
    840,492,766.89x = 1,159,867,910.88 × 464,165,278.16
  4. Step 4: Simplify right side
    840,492,766.89x = 538,370,411,476,673,984
  5. Step 5: Solve for x
    x = 538,370,411,476,673,984/840,492,766.89
  6. Step 6: Final answer
    x = 640,541,397.48

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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.