Home / 18,276,285.16-25,200,876.90-12,478,110.76

Finding the Fourth Proportional to 18,276,285.16, 25,200,876.90 and 12,478,110.76

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Solution

The fourth proportional to 18,276,285.16, 25,200,876.90 and 12,478,110.76 is: 17,205,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276,285.16 : 25,200,876.90 = 12,478,110.76 : x
  2. Step 2: Convert to fraction form
    18,276,285.16/25,200,876.90 = 12,478,110.76/x
  3. Step 3: Cross multiply
    18,276,285.16x = 25,200,876.90 × 12,478,110.76
  4. Step 4: Simplify right side
    18,276,285.16x = 314,459,333,207,325.44
  5. Step 5: Solve for x
    x = 314,459,333,207,325.44/18,276,285.16
  6. Step 6: Final answer
    x = 17,205,867.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.