Home / 10,681,276.80-16,021,915.20-7,825,929.60

Finding the Fourth Proportional to 10,681,276.80, 16,021,915.20 and 7,825,929.60

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Solution

The fourth proportional to 10,681,276.80, 16,021,915.20 and 7,825,929.60 is: 11,738,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681,276.80 : 16,021,915.20 = 7,825,929.60 : x
  2. Step 2: Convert to fraction form
    10,681,276.80/16,021,915.20 = 7,825,929.60/x
  3. Step 3: Cross multiply
    10,681,276.80x = 16,021,915.20 × 7,825,929.60
  4. Step 4: Simplify right side
    10,681,276.80x = 125,386,380,412,369.91
  5. Step 5: Solve for x
    x = 125,386,380,412,369.91/10,681,276.80
  6. Step 6: Final answer
    x = 11,738,894.40

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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.