Home / 65,888,872.81-98,813,410.92-19,818,511.90

Finding the Fourth Proportional to 65,888,872.81, 98,813,410.92 and 19,818,511.90

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Solution

The fourth proportional to 65,888,872.81, 98,813,410.92 and 19,818,511.90 is: 29,721,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,888,872.81 : 98,813,410.92 = 19,818,511.90 : x
  2. Step 2: Convert to fraction form
    65,888,872.81/98,813,410.92 = 19,818,511.90/x
  3. Step 3: Cross multiply
    65,888,872.81x = 98,813,410.92 × 19,818,511.90
  4. Step 4: Simplify right side
    65,888,872.81x = 1,958,334,759,950,576.50
  5. Step 5: Solve for x
    x = 1,958,334,759,950,576.50/65,888,872.81
  6. Step 6: Final answer
    x = 29,721,782.70

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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.