Home / 78,079,646.97-116,421,417.78-75,934,457.39

Finding the Fourth Proportional to 78,079,646.97, 116,421,417.78 and 75,934,457.39

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Solution

The fourth proportional to 78,079,646.97, 116,421,417.78 and 75,934,457.39 is: 113,222,811.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079,646.97 : 116,421,417.78 = 75,934,457.39 : x
  2. Step 2: Convert to fraction form
    78,079,646.97/116,421,417.78 = 75,934,457.39/x
  3. Step 3: Cross multiply
    78,079,646.97x = 116,421,417.78 × 75,934,457.39
  4. Step 4: Simplify right side
    78,079,646.97x = 8,840,397,187,698,799
  5. Step 5: Solve for x
    x = 8,840,397,187,698,799/78,079,646.97
  6. Step 6: Final answer
    x = 113,222,811.97

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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.