Home / 217,851,139.13-326,776,509.04-68,286,677.79

Finding the Fourth Proportional to 217,851,139.13, 326,776,509.04 and 68,286,677.79

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Solution

The fourth proportional to 217,851,139.13, 326,776,509.04 and 68,286,677.79 is: 102,429,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,851,139.13 : 326,776,509.04 = 68,286,677.79 : x
  2. Step 2: Convert to fraction form
    217,851,139.13/326,776,509.04 = 68,286,677.79/x
  3. Step 3: Cross multiply
    217,851,139.13x = 326,776,509.04 × 68,286,677.79
  4. Step 4: Simplify right side
    217,851,139.13x = 22,314,482,182,240,864
  5. Step 5: Solve for x
    x = 22,314,482,182,240,864/217,851,139.13
  6. Step 6: Final answer
    x = 102,429,954.10

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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.