Home / 103,430,668.20-155,133,560.70-42,840,076.20

Finding the Fourth Proportional to 103,430,668.20, 155,133,560.70 and 42,840,076.20

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Solution

The fourth proportional to 103,430,668.20, 155,133,560.70 and 42,840,076.20 is: 64,254,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430,668.20 : 155,133,560.70 = 42,840,076.20 : x
  2. Step 2: Convert to fraction form
    103,430,668.20/155,133,560.70 = 42,840,076.20/x
  3. Step 3: Cross multiply
    103,430,668.20x = 155,133,560.70 × 42,840,076.20
  4. Step 4: Simplify right side
    103,430,668.20x = 6,645,933,561,565,325
  5. Step 5: Solve for x
    x = 6,645,933,561,565,325/103,430,668.20
  6. Step 6: Final answer
    x = 64,254,961.10

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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.