Home / 654,220,485.17-981,339,275.42-217,521,169.32

Finding the Fourth Proportional to 654,220,485.17, 981,339,275.42 and 217,521,169.32

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Solution

The fourth proportional to 654,220,485.17, 981,339,275.42 and 217,521,169.32 is: 326,284,595.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,220,485.17 : 981,339,275.42 = 217,521,169.32 : x
  2. Step 2: Convert to fraction form
    654,220,485.17/981,339,275.42 = 217,521,169.32/x
  3. Step 3: Cross multiply
    654,220,485.17x = 981,339,275.42 × 217,521,169.32
  4. Step 4: Simplify right side
    654,220,485.17x = 213,462,066,688,999,904
  5. Step 5: Solve for x
    x = 213,462,066,688,999,904/654,220,485.17
  6. Step 6: Final answer
    x = 326,284,595.99

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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.