Home / 28,475,365.60-42,708,901.20-8,278,501.60

Finding the Fourth Proportional to 28,475,365.60, 42,708,901.20 and 8,278,501.60

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Solution

The fourth proportional to 28,475,365.60, 42,708,901.20 and 8,278,501.60 is: 12,416,546.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475,365.60 : 42,708,901.20 = 8,278,501.60 : x
  2. Step 2: Convert to fraction form
    28,475,365.60/42,708,901.20 = 8,278,501.60/x
  3. Step 3: Cross multiply
    28,475,365.60x = 42,708,901.20 × 8,278,501.60
  4. Step 4: Simplify right side
    28,475,365.60x = 353,565,706,918,441.94
  5. Step 5: Solve for x
    x = 353,565,706,918,441.94/28,475,365.60
  6. Step 6: Final answer
    x = 12,416,546.71

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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.