Home / 12,143,417.40-18,203,462.10-7,020,588.60

Finding the Fourth Proportional to 12,143,417.40, 18,203,462.10 and 7,020,588.60

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Solution

The fourth proportional to 12,143,417.40, 18,203,462.10 and 7,020,588.60 is: 10,524,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,417.40 : 18,203,462.10 = 7,020,588.60 : x
  2. Step 2: Convert to fraction form
    12,143,417.40/18,203,462.10 = 7,020,588.60/x
  3. Step 3: Cross multiply
    12,143,417.40x = 18,203,462.10 × 7,020,588.60
  4. Step 4: Simplify right side
    12,143,417.40x = 127,799,018,499,792.06
  5. Step 5: Solve for x
    x = 127,799,018,499,792.06/12,143,417.40
  6. Step 6: Final answer
    x = 10,524,139.48

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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.