Home / 12,447,641.40-18,671,462.10-11,691,814.20

Finding the Fourth Proportional to 12,447,641.40, 18,671,462.10 and 11,691,814.20

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Solution

The fourth proportional to 12,447,641.40, 18,671,462.10 and 11,691,814.20 is: 17,537,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447,641.40 : 18,671,462.10 = 11,691,814.20 : x
  2. Step 2: Convert to fraction form
    12,447,641.40/18,671,462.10 = 11,691,814.20/x
  3. Step 3: Cross multiply
    12,447,641.40x = 18,671,462.10 × 11,691,814.20
  4. Step 4: Simplify right side
    12,447,641.40x = 218,303,265,715,541.81
  5. Step 5: Solve for x
    x = 218,303,265,715,541.81/12,447,641.40
  6. Step 6: Final answer
    x = 17,537,721.30

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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.