Home / 28,105,401.20-42,173,848.20-11,928,599.60

Finding the Fourth Proportional to 28,105,401.20, 42,173,848.20 and 11,928,599.60

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Solution

The fourth proportional to 28,105,401.20, 42,173,848.20 and 11,928,599.60 is: 17,899,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105,401.20 : 42,173,848.20 = 11,928,599.60 : x
  2. Step 2: Convert to fraction form
    28,105,401.20/42,173,848.20 = 11,928,599.60/x
  3. Step 3: Cross multiply
    28,105,401.20x = 42,173,848.20 × 11,928,599.60
  4. Step 4: Simplify right side
    28,105,401.20x = 503,074,948,768,980.75
  5. Step 5: Solve for x
    x = 503,074,948,768,980.75/28,105,401.20
  6. Step 6: Final answer
    x = 17,899,582.55

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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.