Home / 66,580,068.12-99,870,102.18-18,711,012.12

Finding the Fourth Proportional to 66,580,068.12, 99,870,102.18 and 18,711,012.12

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Solution

The fourth proportional to 66,580,068.12, 99,870,102.18 and 18,711,012.12 is: 28,066,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,068.12 : 99,870,102.18 = 18,711,012.12 : x
  2. Step 2: Convert to fraction form
    66,580,068.12/99,870,102.18 = 18,711,012.12/x
  3. Step 3: Cross multiply
    66,580,068.12x = 99,870,102.18 × 18,711,012.12
  4. Step 4: Simplify right side
    66,580,068.12x = 1,868,670,692,315,618.75
  5. Step 5: Solve for x
    x = 1,868,670,692,315,618.75/66,580,068.12
  6. Step 6: Final answer
    x = 28,066,518.18

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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.