Home / 66,580,066.50-99,870,099.75-18,711,010.50

Finding the Fourth Proportional to 66,580,066.50, 99,870,099.75 and 18,711,010.50

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Solution

The fourth proportional to 66,580,066.50, 99,870,099.75 and 18,711,010.50 is: 28,066,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,066.50 : 99,870,099.75 = 18,711,010.50 : x
  2. Step 2: Convert to fraction form
    66,580,066.50/99,870,099.75 = 18,711,010.50/x
  3. Step 3: Cross multiply
    66,580,066.50x = 99,870,099.75 × 18,711,010.50
  4. Step 4: Simplify right side
    66,580,066.50x = 1,868,670,485,058,297.50
  5. Step 5: Solve for x
    x = 1,868,670,485,058,297.50/66,580,066.50
  6. Step 6: Final answer
    x = 28,066,515.75

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1.5x scale

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.