Home / 407,331,554.85-611,391,927.22-385,210,323.23

Finding the Fourth Proportional to 407,331,554.85, 611,391,927.22 and 385,210,323.23

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Solution

The fourth proportional to 407,331,554.85, 611,391,927.22 and 385,210,323.23 is: 578,188,650.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,331,554.85 : 611,391,927.22 = 385,210,323.23 : x
  2. Step 2: Convert to fraction form
    407,331,554.85/611,391,927.22 = 385,210,323.23/x
  3. Step 3: Cross multiply
    407,331,554.85x = 611,391,927.22 × 385,210,323.23
  4. Step 4: Simplify right side
    407,331,554.85x = 235,514,481,900,608,864
  5. Step 5: Solve for x
    x = 235,514,481,900,608,864/407,331,554.85
  6. Step 6: Final answer
    x = 578,188,650.24

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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.