Home / 216,418,689.62-298,685,450.65-121,054,498.23

Finding the Fourth Proportional to 216,418,689.62, 298,685,450.65 and 121,054,498.23

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Solution

The fourth proportional to 216,418,689.62, 298,685,450.65 and 121,054,498.23 is: 167,070,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,418,689.62 : 298,685,450.65 = 121,054,498.23 : x
  2. Step 2: Convert to fraction form
    216,418,689.62/298,685,450.65 = 121,054,498.23/x
  3. Step 3: Cross multiply
    216,418,689.62x = 298,685,450.65 × 121,054,498.23
  4. Step 4: Simplify right side
    216,418,689.62x = 36,157,217,356,400,600
  5. Step 5: Solve for x
    x = 36,157,217,356,400,600/216,418,689.62
  6. Step 6: Final answer
    x = 167,070,678.69

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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.