Home / 10,728,763.60-16,111,807.80-5,689,915.60

Finding the Fourth Proportional to 10,728,763.60, 16,111,807.80 and 5,689,915.60

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Solution

The fourth proportional to 10,728,763.60, 16,111,807.80 and 5,689,915.60 is: 8,544,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728,763.60 : 16,111,807.80 = 5,689,915.60 : x
  2. Step 2: Convert to fraction form
    10,728,763.60/16,111,807.80 = 5,689,915.60/x
  3. Step 3: Cross multiply
    10,728,763.60x = 16,111,807.80 × 5,689,915.60
  4. Step 4: Simplify right side
    10,728,763.60x = 91,674,826,545,421.67
  5. Step 5: Solve for x
    x = 91,674,826,545,421.67/10,728,763.60
  6. Step 6: Final answer
    x = 8,544,770.86

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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.