Home / 10,128,660.56-13,977,549.83-5,482,444.67

Finding the Fourth Proportional to 10,128,660.56, 13,977,549.83 and 5,482,444.67

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Solution

The fourth proportional to 10,128,660.56, 13,977,549.83 and 5,482,444.67 is: 7,565,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,660.56 : 13,977,549.83 = 5,482,444.67 : x
  2. Step 2: Convert to fraction form
    10,128,660.56/13,977,549.83 = 5,482,444.67/x
  3. Step 3: Cross multiply
    10,128,660.56x = 13,977,549.83 × 5,482,444.67
  4. Step 4: Simplify right side
    10,128,660.56x = 76,631,143,565,142.91
  5. Step 5: Solve for x
    x = 76,631,143,565,142.91/10,128,660.56
  6. Step 6: Final answer
    x = 7,565,772.70

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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.