Home / 20,628,666.30-30,920,400.45-10,377,176.70

Finding the Fourth Proportional to 20,628,666.30, 30,920,400.45 and 10,377,176.70

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Solution

The fourth proportional to 20,628,666.30, 30,920,400.45 and 10,377,176.70 is: 15,554,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,666.30 : 30,920,400.45 = 10,377,176.70 : x
  2. Step 2: Convert to fraction form
    20,628,666.30/30,920,400.45 = 10,377,176.70/x
  3. Step 3: Cross multiply
    20,628,666.30x = 30,920,400.45 × 10,377,176.70
  4. Step 4: Simplify right side
    20,628,666.30x = 320,866,459,104,409.50
  5. Step 5: Solve for x
    x = 320,866,459,104,409.50/20,628,666.30
  6. Step 6: Final answer
    x = 15,554,396.70

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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.