Home / 124,420,006.40-186,630,009.60-78,734,451.20

Finding the Fourth Proportional to 124,420,006.40, 186,630,009.60 and 78,734,451.20

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Solution

The fourth proportional to 124,420,006.40, 186,630,009.60 and 78,734,451.20 is: 118,101,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,420,006.40 : 186,630,009.60 = 78,734,451.20 : x
  2. Step 2: Convert to fraction form
    124,420,006.40/186,630,009.60 = 78,734,451.20/x
  3. Step 3: Cross multiply
    124,420,006.40x = 186,630,009.60 × 78,734,451.20
  4. Step 4: Simplify right side
    124,420,006.40x = 14,694,211,383,306,732
  5. Step 5: Solve for x
    x = 14,694,211,383,306,732/124,420,006.40
  6. Step 6: Final answer
    x = 118,101,676.80

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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.