Home / 1,423,100,787.12-1,963,771,860.24-866,122,275.60

Finding the Fourth Proportional to 1,423,100,787.12, 1,963,771,860.24 and 866,122,275.60

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Solution

The fourth proportional to 1,423,100,787.12, 1,963,771,860.24 and 866,122,275.60 is: 1,195,183,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,100,787.12 : 1,963,771,860.24 = 866,122,275.60 : x
  2. Step 2: Convert to fraction form
    1,423,100,787.12/1,963,771,860.24 = 866,122,275.60/x
  3. Step 3: Cross multiply
    1,423,100,787.12x = 1,963,771,860.24 × 866,122,275.60
  4. Step 4: Simplify right side
    1,423,100,787.12x = 1,700,866,552,350,313,984
  5. Step 5: Solve for x
    x = 1,700,866,552,350,313,984/1,423,100,787.12
  6. Step 6: Final answer
    x = 1,195,183,480.85

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Double scale
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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.