Home / 28,191,985.20-42,287,977.80-19,234,033.20

Finding the Fourth Proportional to 28,191,985.20, 42,287,977.80 and 19,234,033.20

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Solution

The fourth proportional to 28,191,985.20, 42,287,977.80 and 19,234,033.20 is: 28,851,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191,985.20 : 42,287,977.80 = 19,234,033.20 : x
  2. Step 2: Convert to fraction form
    28,191,985.20/42,287,977.80 = 19,234,033.20/x
  3. Step 3: Cross multiply
    28,191,985.20x = 42,287,977.80 × 19,234,033.20
  4. Step 4: Simplify right side
    28,191,985.20x = 813,368,368,966,062.88
  5. Step 5: Solve for x
    x = 813,368,368,966,062.88/28,191,985.20
  6. Step 6: Final answer
    x = 28,851,049.80

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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.