Home / 92,012,415.60-138,018,623.40-28,187,007.60

Finding the Fourth Proportional to 92,012,415.60, 138,018,623.40 and 28,187,007.60

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Solution

The fourth proportional to 92,012,415.60, 138,018,623.40 and 28,187,007.60 is: 42,280,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,012,415.60 : 138,018,623.40 = 28,187,007.60 : x
  2. Step 2: Convert to fraction form
    92,012,415.60/138,018,623.40 = 28,187,007.60/x
  3. Step 3: Cross multiply
    92,012,415.60x = 138,018,623.40 × 28,187,007.60
  4. Step 4: Simplify right side
    92,012,415.60x = 3,890,331,986,717,338
  5. Step 5: Solve for x
    x = 3,890,331,986,717,338/92,012,415.60
  6. Step 6: Final answer
    x = 42,280,511.40

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Double scale
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Similar ratio
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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.