Home / 22,715,280.40-34,072,920.60-21,072,989.20

Finding the Fourth Proportional to 22,715,280.40, 34,072,920.60 and 21,072,989.20

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Solution

The fourth proportional to 22,715,280.40, 34,072,920.60 and 21,072,989.20 is: 31,609,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715,280.40 : 34,072,920.60 = 21,072,989.20 : x
  2. Step 2: Convert to fraction form
    22,715,280.40/34,072,920.60 = 21,072,989.20/x
  3. Step 3: Cross multiply
    22,715,280.40x = 34,072,920.60 × 21,072,989.20
  4. Step 4: Simplify right side
    22,715,280.40x = 718,018,287,816,257.50
  5. Step 5: Solve for x
    x = 718,018,287,816,257.50/22,715,280.40
  6. Step 6: Final answer
    x = 31,609,483.80

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1.5x scale

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.