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Finding the Fourth Proportional to 28,416,009.60, 42,624,014.40 and 28,416,009.60

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Solution

The fourth proportional to 28,416,009.60, 42,624,014.40 and 28,416,009.60 is: 42,624,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416,009.60 : 42,624,014.40 = 28,416,009.60 : x
  2. Step 2: Convert to fraction form
    28,416,009.60/42,624,014.40 = 28,416,009.60/x
  3. Step 3: Cross multiply
    28,416,009.60x = 42,624,014.40 × 28,416,009.60
  4. Step 4: Simplify right side
    28,416,009.60x = 1,211,204,402,380,938.25
  5. Step 5: Solve for x
    x = 1,211,204,402,380,938.25/28,416,009.60
  6. Step 6: Final answer
    x = 42,624,014.40

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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.