Home / 10,917,870.40-16,351,922.40-6,438,894.40

Finding the Fourth Proportional to 10,917,870.40, 16,351,922.40 and 6,438,894.40

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Solution

The fourth proportional to 10,917,870.40, 16,351,922.40 and 6,438,894.40 is: 9,643,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917,870.40 : 16,351,922.40 = 6,438,894.40 : x
  2. Step 2: Convert to fraction form
    10,917,870.40/16,351,922.40 = 6,438,894.40/x
  3. Step 3: Cross multiply
    10,917,870.40x = 16,351,922.40 × 6,438,894.40
  4. Step 4: Simplify right side
    10,917,870.40x = 105,288,301,570,594.56
  5. Step 5: Solve for x
    x = 105,288,301,570,594.56/10,917,870.40
  6. Step 6: Final answer
    x = 9,643,666.55

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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.