Home / 12,103,814.40-18,139,780.80-8,893,881.60

Finding the Fourth Proportional to 12,103,814.40, 18,139,780.80 and 8,893,881.60

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Solution

The fourth proportional to 12,103,814.40, 18,139,780.80 and 8,893,881.60 is: 13,329,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103,814.40 : 18,139,780.80 = 8,893,881.60 : x
  2. Step 2: Convert to fraction form
    12,103,814.40/18,139,780.80 = 8,893,881.60/x
  3. Step 3: Cross multiply
    12,103,814.40x = 18,139,780.80 × 8,893,881.60
  4. Step 4: Simplify right side
    12,103,814.40x = 161,333,062,685,153.28
  5. Step 5: Solve for x
    x = 161,333,062,685,153.28/12,103,814.40
  6. Step 6: Final answer
    x = 13,329,109.10

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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.