Home / 65,664,623.80-98,506,266.90-20,221,679.80

Finding the Fourth Proportional to 65,664,623.80, 98,506,266.90 and 20,221,679.80

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Solution

The fourth proportional to 65,664,623.80, 98,506,266.90 and 20,221,679.80 is: 30,335,393.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,623.80 : 98,506,266.90 = 20,221,679.80 : x
  2. Step 2: Convert to fraction form
    65,664,623.80/98,506,266.90 = 20,221,679.80/x
  3. Step 3: Cross multiply
    65,664,623.80x = 98,506,266.90 × 20,221,679.80
  4. Step 4: Simplify right side
    65,664,623.80x = 1,991,962,187,545,138.75
  5. Step 5: Solve for x
    x = 1,991,962,187,545,138.75/65,664,623.80
  6. Step 6: Final answer
    x = 30,335,393.28

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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.