Home / 859,627,787.70-1,289,441,681.55-368,257,439.10

Finding the Fourth Proportional to 859,627,787.70, 1,289,441,681.55 and 368,257,439.10

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Solution

The fourth proportional to 859,627,787.70, 1,289,441,681.55 and 368,257,439.10 is: 552,386,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,627,787.70 : 1,289,441,681.55 = 368,257,439.10 : x
  2. Step 2: Convert to fraction form
    859,627,787.70/1,289,441,681.55 = 368,257,439.10/x
  3. Step 3: Cross multiply
    859,627,787.70x = 1,289,441,681.55 × 368,257,439.10
  4. Step 4: Simplify right side
    859,627,787.70x = 474,846,491,516,400,704
  5. Step 5: Solve for x
    x = 474,846,491,516,400,704/859,627,787.70
  6. Step 6: Final answer
    x = 552,386,158.65

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.