Home / 10,917,873.40-16,351,926.90-6,438,897.40

Finding the Fourth Proportional to 10,917,873.40, 16,351,926.90 and 6,438,897.40

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Solution

The fourth proportional to 10,917,873.40, 16,351,926.90 and 6,438,897.40 is: 9,643,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917,873.40 : 16,351,926.90 = 6,438,897.40 : x
  2. Step 2: Convert to fraction form
    10,917,873.40/16,351,926.90 = 6,438,897.40/x
  3. Step 3: Cross multiply
    10,917,873.40x = 16,351,926.90 × 6,438,897.40
  4. Step 4: Simplify right side
    10,917,873.40x = 105,288,379,601,400.06
  5. Step 5: Solve for x
    x = 105,288,379,601,400.06/10,917,873.40
  6. Step 6: Final answer
    x = 9,643,671.05

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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.