Home / 121,606,417.05-167,828,857.95-69,403,262.86

Finding the Fourth Proportional to 121,606,417.05, 167,828,857.95 and 69,403,262.86

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Solution

The fourth proportional to 121,606,417.05, 167,828,857.95 and 69,403,262.86 is: 95,783,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,606,417.05 : 167,828,857.95 = 69,403,262.86 : x
  2. Step 2: Convert to fraction form
    121,606,417.05/167,828,857.95 = 69,403,262.86/x
  3. Step 3: Cross multiply
    121,606,417.05x = 167,828,857.95 × 69,403,262.86
  4. Step 4: Simplify right side
    121,606,417.05x = 11,647,870,343,797,450
  5. Step 5: Solve for x
    x = 11,647,870,343,797,450/121,606,417.05
  6. Step 6: Final answer
    x = 95,783,352.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.