Home / 42,119,999.20-58,134,579.12-28,907,250.40

Finding the Fourth Proportional to 42,119,999.20, 58,134,579.12 and 28,907,250.40

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Solution

The fourth proportional to 42,119,999.20, 58,134,579.12 and 28,907,250.40 is: 39,898,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,119,999.20 : 58,134,579.12 = 28,907,250.40 : x
  2. Step 2: Convert to fraction form
    42,119,999.20/58,134,579.12 = 28,907,250.40/x
  3. Step 3: Cross multiply
    42,119,999.20x = 58,134,579.12 × 28,907,250.40
  4. Step 4: Simplify right side
    42,119,999.20x = 1,680,510,835,520,451.50
  5. Step 5: Solve for x
    x = 1,680,510,835,520,451.50/42,119,999.20
  6. Step 6: Final answer
    x = 39,898,168.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.