Home / 217,426,299.28-326,139,448.38-79,262,268.12

Finding the Fourth Proportional to 217,426,299.28, 326,139,448.38 and 79,262,268.12

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Solution

The fourth proportional to 217,426,299.28, 326,139,448.38 and 79,262,268.12 is: 118,893,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,426,299.28 : 326,139,448.38 = 79,262,268.12 : x
  2. Step 2: Convert to fraction form
    217,426,299.28/326,139,448.38 = 79,262,268.12/x
  3. Step 3: Cross multiply
    217,426,299.28x = 326,139,448.38 × 79,262,268.12
  4. Step 4: Simplify right side
    217,426,299.28x = 25,850,552,402,004,460
  5. Step 5: Solve for x
    x = 25,850,552,402,004,460/217,426,299.28
  6. Step 6: Final answer
    x = 118,893,401.98

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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.