Home / 28,072,768.40-42,109,152.60-8,905,025.60

Finding the Fourth Proportional to 28,072,768.40, 42,109,152.60 and 8,905,025.60

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Solution

The fourth proportional to 28,072,768.40, 42,109,152.60 and 8,905,025.60 is: 13,357,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,768.40 : 42,109,152.60 = 8,905,025.60 : x
  2. Step 2: Convert to fraction form
    28,072,768.40/42,109,152.60 = 8,905,025.60/x
  3. Step 3: Cross multiply
    28,072,768.40x = 42,109,152.60 × 8,905,025.60
  4. Step 4: Simplify right side
    28,072,768.40x = 374,983,081,897,306.56
  5. Step 5: Solve for x
    x = 374,983,081,897,306.56/28,072,768.40
  6. Step 6: Final answer
    x = 13,357,538.40

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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.