Home / 18,711,211.70-28,066,817.55-18,459,269.30

Finding the Fourth Proportional to 18,711,211.70, 28,066,817.55 and 18,459,269.30

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Solution

The fourth proportional to 18,711,211.70, 28,066,817.55 and 18,459,269.30 is: 27,688,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,211.70 : 28,066,817.55 = 18,459,269.30 : x
  2. Step 2: Convert to fraction form
    18,711,211.70/28,066,817.55 = 18,459,269.30/x
  3. Step 3: Cross multiply
    18,711,211.70x = 28,066,817.55 × 18,459,269.30
  4. Step 4: Simplify right side
    18,711,211.70x = 518,092,943,549,416.25
  5. Step 5: Solve for x
    x = 518,092,943,549,416.25/18,711,211.70
  6. Step 6: Final answer
    x = 27,688,903.95

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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.