Home / 28,397,803.20-42,596,704.80-8,205,086.40

Finding the Fourth Proportional to 28,397,803.20, 42,596,704.80 and 8,205,086.40

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Solution

The fourth proportional to 28,397,803.20, 42,596,704.80 and 8,205,086.40 is: 12,307,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,397,803.20 : 42,596,704.80 = 8,205,086.40 : x
  2. Step 2: Convert to fraction form
    28,397,803.20/42,596,704.80 = 8,205,086.40/x
  3. Step 3: Cross multiply
    28,397,803.20x = 42,596,704.80 × 8,205,086.40
  4. Step 4: Simplify right side
    28,397,803.20x = 349,509,643,239,294.69
  5. Step 5: Solve for x
    x = 349,509,643,239,294.69/28,397,803.20
  6. Step 6: Final answer
    x = 12,307,629.60

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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.