Home / 21,103,930.08-31,478,461.11-19,166,532.39

Finding the Fourth Proportional to 21,103,930.08, 31,478,461.11 and 19,166,532.39

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Solution

The fourth proportional to 21,103,930.08, 31,478,461.11 and 19,166,532.39 is: 28,588,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103,930.08 : 31,478,461.11 = 19,166,532.39 : x
  2. Step 2: Convert to fraction form
    21,103,930.08/31,478,461.11 = 19,166,532.39/x
  3. Step 3: Cross multiply
    21,103,930.08x = 31,478,461.11 × 19,166,532.39
  4. Step 4: Simplify right side
    21,103,930.08x = 603,332,944,452,170.38
  5. Step 5: Solve for x
    x = 603,332,944,452,170.38/21,103,930.08
  6. Step 6: Final answer
    x = 28,588,653.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.