Home / 66,927,861.60-100,389,718.80-19,058,805.60

Finding the Fourth Proportional to 66,927,861.60, 100,389,718.80 and 19,058,805.60

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Solution

The fourth proportional to 66,927,861.60, 100,389,718.80 and 19,058,805.60 is: 28,587,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,927,861.60 : 100,389,718.80 = 19,058,805.60 : x
  2. Step 2: Convert to fraction form
    66,927,861.60/100,389,718.80 = 19,058,805.60/x
  3. Step 3: Cross multiply
    66,927,861.60x = 100,389,718.80 × 19,058,805.60
  4. Step 4: Simplify right side
    66,927,861.60x = 1,913,308,134,847,865.25
  5. Step 5: Solve for x
    x = 1,913,308,134,847,865.25/66,927,861.60
  6. Step 6: Final answer
    x = 28,587,617.91

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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.