Home / 9,965,985.40-14,948,978.10-5,419,212.40

Finding the Fourth Proportional to 9,965,985.40, 14,948,978.10 and 5,419,212.40

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Solution

The fourth proportional to 9,965,985.40, 14,948,978.10 and 5,419,212.40 is: 8,128,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,985.40 : 14,948,978.10 = 5,419,212.40 : x
  2. Step 2: Convert to fraction form
    9,965,985.40/14,948,978.10 = 5,419,212.40/x
  3. Step 3: Cross multiply
    9,965,985.40x = 14,948,978.10 × 5,419,212.40
  4. Step 4: Simplify right side
    9,965,985.40x = 81,011,687,486,848.44
  5. Step 5: Solve for x
    x = 81,011,687,486,848.44/9,965,985.40
  6. Step 6: Final answer
    x = 8,128,818.60

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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.