Home / 28,342,801.80-42,518,349.90-9,170,296.20

Finding the Fourth Proportional to 28,342,801.80, 42,518,349.90 and 9,170,296.20

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Solution

The fourth proportional to 28,342,801.80, 42,518,349.90 and 9,170,296.20 is: 13,756,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,801.80 : 42,518,349.90 = 9,170,296.20 : x
  2. Step 2: Convert to fraction form
    28,342,801.80/42,518,349.90 = 9,170,296.20/x
  3. Step 3: Cross multiply
    28,342,801.80x = 42,518,349.90 × 9,170,296.20
  4. Step 4: Simplify right side
    28,342,801.80x = 389,905,862,518,240.31
  5. Step 5: Solve for x
    x = 389,905,862,518,240.31/28,342,801.80
  6. Step 6: Final answer
    x = 13,756,786.12

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1.5x scale

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.