Home / 1,265,544,107.20-1,898,316,160.80-538,438,340.80

Finding the Fourth Proportional to 1,265,544,107.20, 1,898,316,160.80 and 538,438,340.80

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Solution

The fourth proportional to 1,265,544,107.20, 1,898,316,160.80 and 538,438,340.80 is: 807,657,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,544,107.20 : 1,898,316,160.80 = 538,438,340.80 : x
  2. Step 2: Convert to fraction form
    1,265,544,107.20/1,898,316,160.80 = 538,438,340.80/x
  3. Step 3: Cross multiply
    1,265,544,107.20x = 1,898,316,160.80 × 538,438,340.80
  4. Step 4: Simplify right side
    1,265,544,107.20x = 1,022,126,203,934,977,920
  5. Step 5: Solve for x
    x = 1,022,126,203,934,977,920/1,265,544,107.20
  6. Step 6: Final answer
    x = 807,657,511.20

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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.