Home / 1,299,078,002.70-1,948,617,004.05-329,729,618.70

Finding the Fourth Proportional to 1,299,078,002.70, 1,948,617,004.05 and 329,729,618.70

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Solution

The fourth proportional to 1,299,078,002.70, 1,948,617,004.05 and 329,729,618.70 is: 494,594,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,078,002.70 : 1,948,617,004.05 = 329,729,618.70 : x
  2. Step 2: Convert to fraction form
    1,299,078,002.70/1,948,617,004.05 = 329,729,618.70/x
  3. Step 3: Cross multiply
    1,299,078,002.70x = 1,948,617,004.05 × 329,729,618.70
  4. Step 4: Simplify right side
    1,299,078,002.70x = 642,516,741,737,742,848
  5. Step 5: Solve for x
    x = 642,516,741,737,742,848/1,299,078,002.70
  6. Step 6: Final answer
    x = 494,594,428.05

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Double scale
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1.5x scale

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.