Home / 28,231,869.60-42,389,794.80-21,849,328.80

Finding the Fourth Proportional to 28,231,869.60, 42,389,794.80 and 21,849,328.80

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Solution

The fourth proportional to 28,231,869.60, 42,389,794.80 and 21,849,328.80 is: 32,806,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231,869.60 : 42,389,794.80 = 21,849,328.80 : x
  2. Step 2: Convert to fraction form
    28,231,869.60/42,389,794.80 = 21,849,328.80/x
  3. Step 3: Cross multiply
    28,231,869.60x = 42,389,794.80 × 21,849,328.80
  4. Step 4: Simplify right side
    28,231,869.60x = 926,188,564,349,730.25
  5. Step 5: Solve for x
    x = 926,188,564,349,730.25/28,231,869.60
  6. Step 6: Final answer
    x = 32,806,490.59

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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.