Home / 12,376,428.40-18,564,642.60-11,312,671.60

Finding the Fourth Proportional to 12,376,428.40, 18,564,642.60 and 11,312,671.60

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Solution

The fourth proportional to 12,376,428.40, 18,564,642.60 and 11,312,671.60 is: 16,969,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376,428.40 : 18,564,642.60 = 11,312,671.60 : x
  2. Step 2: Convert to fraction form
    12,376,428.40/18,564,642.60 = 11,312,671.60/x
  3. Step 3: Cross multiply
    12,376,428.40x = 18,564,642.60 × 11,312,671.60
  4. Step 4: Simplify right side
    12,376,428.40x = 210,015,705,105,170.16
  5. Step 5: Solve for x
    x = 210,015,705,105,170.16/12,376,428.40
  6. Step 6: Final answer
    x = 16,969,007.40

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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.