Home / 10,369,621.20-15,554,431.80-8,480,053.20

Finding the Fourth Proportional to 10,369,621.20, 15,554,431.80 and 8,480,053.20

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Solution

The fourth proportional to 10,369,621.20, 15,554,431.80 and 8,480,053.20 is: 12,720,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369,621.20 : 15,554,431.80 = 8,480,053.20 : x
  2. Step 2: Convert to fraction form
    10,369,621.20/15,554,431.80 = 8,480,053.20/x
  3. Step 3: Cross multiply
    10,369,621.20x = 15,554,431.80 × 8,480,053.20
  4. Step 4: Simplify right side
    10,369,621.20x = 131,902,409,159,771.75
  5. Step 5: Solve for x
    x = 131,902,409,159,771.75/10,369,621.20
  6. Step 6: Final answer
    x = 12,720,079.80

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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.