Home / 10,128,666.32-13,977,557.20-5,482,450.43

Finding the Fourth Proportional to 10,128,666.32, 13,977,557.20 and 5,482,450.43

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Solution

The fourth proportional to 10,128,666.32, 13,977,557.20 and 5,482,450.43 is: 7,565,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,666.32 : 13,977,557.20 = 5,482,450.43 : x
  2. Step 2: Convert to fraction form
    10,128,666.32/13,977,557.20 = 5,482,450.43/x
  3. Step 3: Cross multiply
    10,128,666.32x = 13,977,557.20 × 5,482,450.43
  4. Step 4: Simplify right side
    10,128,666.32x = 76,631,264,481,489.59
  5. Step 5: Solve for x
    x = 76,631,264,481,489.59/10,128,666.32
  6. Step 6: Final answer
    x = 7,565,780.34

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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.