Home / 10,778,877.20-16,168,315.80-7,377,654.80

Finding the Fourth Proportional to 10,778,877.20, 16,168,315.80 and 7,377,654.80

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Solution

The fourth proportional to 10,778,877.20, 16,168,315.80 and 7,377,654.80 is: 11,066,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,877.20 : 16,168,315.80 = 7,377,654.80 : x
  2. Step 2: Convert to fraction form
    10,778,877.20/16,168,315.80 = 7,377,654.80/x
  3. Step 3: Cross multiply
    10,778,877.20x = 16,168,315.80 × 7,377,654.80
  4. Step 4: Simplify right side
    10,778,877.20x = 119,284,252,669,785.84
  5. Step 5: Solve for x
    x = 119,284,252,669,785.84/10,778,877.20
  6. Step 6: Final answer
    x = 11,066,482.20

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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.