Home / 28,334,320.60-42,548,720.10-18,792,002.20

Finding the Fourth Proportional to 28,334,320.60, 42,548,720.10 and 18,792,002.20

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Solution

The fourth proportional to 28,334,320.60, 42,548,720.10 and 18,792,002.20 is: 28,219,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334,320.60 : 42,548,720.10 = 18,792,002.20 : x
  2. Step 2: Convert to fraction form
    28,334,320.60/42,548,720.10 = 18,792,002.20/x
  3. Step 3: Cross multiply
    28,334,320.60x = 42,548,720.10 × 18,792,002.20
  4. Step 4: Simplify right side
    28,334,320.60x = 799,575,641,726,384.25
  5. Step 5: Solve for x
    x = 799,575,641,726,384.25/28,334,320.60
  6. Step 6: Final answer
    x = 28,219,333.47

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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.