Home / 10,780,655.60-16,170,983.40-7,143,237.20

Finding the Fourth Proportional to 10,780,655.60, 16,170,983.40 and 7,143,237.20

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Solution

The fourth proportional to 10,780,655.60, 16,170,983.40 and 7,143,237.20 is: 10,714,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,655.60 : 16,170,983.40 = 7,143,237.20 : x
  2. Step 2: Convert to fraction form
    10,780,655.60/16,170,983.40 = 7,143,237.20/x
  3. Step 3: Cross multiply
    10,780,655.60x = 16,170,983.40 × 7,143,237.20
  4. Step 4: Simplify right side
    10,780,655.60x = 115,513,170,183,462.48
  5. Step 5: Solve for x
    x = 115,513,170,183,462.48/10,780,655.60
  6. Step 6: Final answer
    x = 10,714,855.80

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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.