Home / 38,521,408.80-57,790,666.80-12,961,696.80

Finding the Fourth Proportional to 38,521,408.80, 57,790,666.80 and 12,961,696.80

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Solution

The fourth proportional to 38,521,408.80, 57,790,666.80 and 12,961,696.80 is: 19,445,423.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521,408.80 : 57,790,666.80 = 12,961,696.80 : x
  2. Step 2: Convert to fraction form
    38,521,408.80/57,790,666.80 = 12,961,696.80/x
  3. Step 3: Cross multiply
    38,521,408.80x = 57,790,666.80 × 12,961,696.80
  4. Step 4: Simplify right side
    38,521,408.80x = 749,065,100,931,426.25
  5. Step 5: Solve for x
    x = 749,065,100,931,426.25/38,521,408.80
  6. Step 6: Final answer
    x = 19,445,423.32

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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.