Home / 65,888,873.81-98,813,412.42-19,818,512.90

Finding the Fourth Proportional to 65,888,873.81, 98,813,412.42 and 19,818,512.90

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Solution

The fourth proportional to 65,888,873.81, 98,813,412.42 and 19,818,512.90 is: 29,721,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,888,873.81 : 98,813,412.42 = 19,818,512.90 : x
  2. Step 2: Convert to fraction form
    65,888,873.81/98,813,412.42 = 19,818,512.90/x
  3. Step 3: Cross multiply
    65,888,873.81x = 98,813,412.42 × 19,818,512.90
  4. Step 4: Simplify right side
    65,888,873.81x = 1,958,334,888,738,790
  5. Step 5: Solve for x
    x = 1,958,334,888,738,790/65,888,873.81
  6. Step 6: Final answer
    x = 29,721,784.20

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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.