Home / 265,728,140.70-398,592,211.05-156,441,126.30

Finding the Fourth Proportional to 265,728,140.70, 398,592,211.05 and 156,441,126.30

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Solution

The fourth proportional to 265,728,140.70, 398,592,211.05 and 156,441,126.30 is: 234,661,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,728,140.70 : 398,592,211.05 = 156,441,126.30 : x
  2. Step 2: Convert to fraction form
    265,728,140.70/398,592,211.05 = 156,441,126.30/x
  3. Step 3: Cross multiply
    265,728,140.70x = 398,592,211.05 × 156,441,126.30
  4. Step 4: Simplify right side
    265,728,140.70x = 62,356,214,431,069,312
  5. Step 5: Solve for x
    x = 62,356,214,431,069,312/265,728,140.70
  6. Step 6: Final answer
    x = 234,661,689.45

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Double scale
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Similar ratio
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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.