Home / 10,430,102.80-15,613,661.40-9,170,390.80

Finding the Fourth Proportional to 10,430,102.80, 15,613,661.40 and 9,170,390.80

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Solution

The fourth proportional to 10,430,102.80, 15,613,661.40 and 9,170,390.80 is: 13,727,896.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430,102.80 : 15,613,661.40 = 9,170,390.80 : x
  2. Step 2: Convert to fraction form
    10,430,102.80/15,613,661.40 = 9,170,390.80/x
  3. Step 3: Cross multiply
    10,430,102.80x = 15,613,661.40 × 9,170,390.80
  4. Step 4: Simplify right side
    10,430,102.80x = 143,183,376,856,875.12
  5. Step 5: Solve for x
    x = 143,183,376,856,875.12/10,430,102.80
  6. Step 6: Final answer
    x = 13,727,896.99

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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.