Home / 18,711,214.20-28,066,821.30-18,459,271.80

Finding the Fourth Proportional to 18,711,214.20, 28,066,821.30 and 18,459,271.80

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Solution

The fourth proportional to 18,711,214.20, 28,066,821.30 and 18,459,271.80 is: 27,688,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,214.20 : 28,066,821.30 = 18,459,271.80 : x
  2. Step 2: Convert to fraction form
    18,711,214.20/28,066,821.30 = 18,459,271.80/x
  3. Step 3: Cross multiply
    18,711,214.20x = 28,066,821.30 × 18,459,271.80
  4. Step 4: Simplify right side
    18,711,214.20x = 518,093,082,938,729.38
  5. Step 5: Solve for x
    x = 518,093,082,938,729.38/18,711,214.20
  6. Step 6: Final answer
    x = 27,688,907.70

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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.