Home / 42,768,049.90-64,152,074.85-12,475,912.90

Finding the Fourth Proportional to 42,768,049.90, 64,152,074.85 and 12,475,912.90

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Solution

The fourth proportional to 42,768,049.90, 64,152,074.85 and 12,475,912.90 is: 18,713,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,049.90 : 64,152,074.85 = 12,475,912.90 : x
  2. Step 2: Convert to fraction form
    42,768,049.90/64,152,074.85 = 12,475,912.90/x
  3. Step 3: Cross multiply
    42,768,049.90x = 64,152,074.85 × 12,475,912.90
  4. Step 4: Simplify right side
    42,768,049.90x = 800,355,698,182,880.62
  5. Step 5: Solve for x
    x = 800,355,698,182,880.62/42,768,049.90
  6. Step 6: Final answer
    x = 18,713,869.35

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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.