Home / 47,990,156.80-71,985,235.20-12,088,364.80

Finding the Fourth Proportional to 47,990,156.80, 71,985,235.20 and 12,088,364.80

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Solution

The fourth proportional to 47,990,156.80, 71,985,235.20 and 12,088,364.80 is: 18,132,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,990,156.80 : 71,985,235.20 = 12,088,364.80 : x
  2. Step 2: Convert to fraction form
    47,990,156.80/71,985,235.20 = 12,088,364.80/x
  3. Step 3: Cross multiply
    47,990,156.80x = 71,985,235.20 × 12,088,364.80
  4. Step 4: Simplify right side
    47,990,156.80x = 870,183,783,311,401
  5. Step 5: Solve for x
    x = 870,183,783,311,401/47,990,156.80
  6. Step 6: Final answer
    x = 18,132,547.20

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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.