Home / 10,078,921.80-15,106,572.90-7,551,624.60

Finding the Fourth Proportional to 10,078,921.80, 15,106,572.90 and 7,551,624.60

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Solution

The fourth proportional to 10,078,921.80, 15,106,572.90 and 7,551,624.60 is: 11,318,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078,921.80 : 15,106,572.90 = 7,551,624.60 : x
  2. Step 2: Convert to fraction form
    10,078,921.80/15,106,572.90 = 7,551,624.60/x
  3. Step 3: Cross multiply
    10,078,921.80x = 15,106,572.90 × 7,551,624.60
  4. Step 4: Simplify right side
    10,078,921.80x = 114,079,167,533,333.34
  5. Step 5: Solve for x
    x = 114,079,167,533,333.34/10,078,921.80
  6. Step 6: Final answer
    x = 11,318,588.42

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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.