Home / 21,919,116.80-32,941,660.80-19,147,750.40

Finding the Fourth Proportional to 21,919,116.80, 32,941,660.80 and 19,147,750.40

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Solution

The fourth proportional to 21,919,116.80, 32,941,660.80 and 19,147,750.40 is: 28,776,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,116.80 : 32,941,660.80 = 19,147,750.40 : x
  2. Step 2: Convert to fraction form
    21,919,116.80/32,941,660.80 = 19,147,750.40/x
  3. Step 3: Cross multiply
    21,919,116.80x = 32,941,660.80 × 19,147,750.40
  4. Step 4: Simplify right side
    21,919,116.80x = 630,758,698,759,864.25
  5. Step 5: Solve for x
    x = 630,758,698,759,864.25/21,919,116.80
  6. Step 6: Final answer
    x = 28,776,647.55

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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.