Home / 28,371,869.59-42,563,782.19-9,201,131.82

Finding the Fourth Proportional to 28,371,869.59, 42,563,782.19 and 9,201,131.82

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Solution

The fourth proportional to 28,371,869.59, 42,563,782.19 and 9,201,131.82 is: 13,803,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,869.59 : 42,563,782.19 = 9,201,131.82 : x
  2. Step 2: Convert to fraction form
    28,371,869.59/42,563,782.19 = 9,201,131.82/x
  3. Step 3: Cross multiply
    28,371,869.59x = 42,563,782.19 × 9,201,131.82
  4. Step 4: Simplify right side
    28,371,869.59x = 391,634,970,687,958.25
  5. Step 5: Solve for x
    x = 391,634,970,687,958.25/28,371,869.59
  6. Step 6: Final answer
    x = 13,803,636.36

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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.