Home / 7,981,807.60-11,974,266.60-3,188,681.20

Finding the Fourth Proportional to 7,981,807.60, 11,974,266.60 and 3,188,681.20

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Solution

The fourth proportional to 7,981,807.60, 11,974,266.60 and 3,188,681.20 is: 4,783,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,807.60 : 11,974,266.60 = 3,188,681.20 : x
  2. Step 2: Convert to fraction form
    7,981,807.60/11,974,266.60 = 3,188,681.20/x
  3. Step 3: Cross multiply
    7,981,807.60x = 11,974,266.60 × 3,188,681.20
  4. Step 4: Simplify right side
    7,981,807.60x = 38,182,118,791,207.92
  5. Step 5: Solve for x
    x = 38,182,118,791,207.92/7,981,807.60
  6. Step 6: Final answer
    x = 4,783,643.09

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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.