Home / 14,185,655.40-21,278,483.10-9,855,978.60

Finding the Fourth Proportional to 14,185,655.40, 21,278,483.10 and 9,855,978.60

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Solution

The fourth proportional to 14,185,655.40, 21,278,483.10 and 9,855,978.60 is: 14,783,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185,655.40 : 21,278,483.10 = 9,855,978.60 : x
  2. Step 2: Convert to fraction form
    14,185,655.40/21,278,483.10 = 9,855,978.60/x
  3. Step 3: Cross multiply
    14,185,655.40x = 21,278,483.10 × 9,855,978.60
  4. Step 4: Simplify right side
    14,185,655.40x = 209,720,274,074,061.66
  5. Step 5: Solve for x
    x = 209,720,274,074,061.66/14,185,655.40
  6. Step 6: Final answer
    x = 14,783,967.90

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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.