Home / 18,276,284.16-25,200,875.52-12,478,109.76

Finding the Fourth Proportional to 18,276,284.16, 25,200,875.52 and 12,478,109.76

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Solution

The fourth proportional to 18,276,284.16, 25,200,875.52 and 12,478,109.76 is: 17,205,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276,284.16 : 25,200,875.52 = 12,478,109.76 : x
  2. Step 2: Convert to fraction form
    18,276,284.16/25,200,875.52 = 12,478,109.76/x
  3. Step 3: Cross multiply
    18,276,284.16x = 25,200,875.52 × 12,478,109.76
  4. Step 4: Simplify right side
    18,276,284.16x = 314,459,290,786,657.06
  5. Step 5: Solve for x
    x = 314,459,290,786,657.06/18,276,284.16
  6. Step 6: Final answer
    x = 17,205,865.70

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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.