Home / 10,679,805.20-16,057,032.60-10,455,856.40

Finding the Fourth Proportional to 10,679,805.20, 16,057,032.60 and 10,455,856.40

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Solution

The fourth proportional to 10,679,805.20, 16,057,032.60 and 10,455,856.40 is: 15,720,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679,805.20 : 16,057,032.60 = 10,455,856.40 : x
  2. Step 2: Convert to fraction form
    10,679,805.20/16,057,032.60 = 10,455,856.40/x
  3. Step 3: Cross multiply
    10,679,805.20x = 16,057,032.60 × 10,455,856.40
  4. Step 4: Simplify right side
    10,679,805.20x = 167,890,027,075,718.66
  5. Step 5: Solve for x
    x = 167,890,027,075,718.66/10,679,805.20
  6. Step 6: Final answer
    x = 15,720,326.72

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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.