Home / 421,514,725.68-581,697,208.16-230,772,561.04

Finding the Fourth Proportional to 421,514,725.68, 581,697,208.16 and 230,772,561.04

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Solution

The fourth proportional to 421,514,725.68, 581,697,208.16 and 230,772,561.04 is: 318,469,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,514,725.68 : 581,697,208.16 = 230,772,561.04 : x
  2. Step 2: Convert to fraction form
    421,514,725.68/581,697,208.16 = 230,772,561.04/x
  3. Step 3: Cross multiply
    421,514,725.68x = 581,697,208.16 × 230,772,561.04
  4. Step 4: Simplify right side
    421,514,725.68x = 134,239,754,476,901,168
  5. Step 5: Solve for x
    x = 134,239,754,476,901,168/421,514,725.68
  6. Step 6: Final answer
    x = 318,469,904.60

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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.