Home / 388,052,738.25-535,514,953.91-220,788,995.42

Finding the Fourth Proportional to 388,052,738.25, 535,514,953.91 and 220,788,995.42

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Solution

The fourth proportional to 388,052,738.25, 535,514,953.91 and 220,788,995.42 is: 304,690,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,052,738.25 : 535,514,953.91 = 220,788,995.42 : x
  2. Step 2: Convert to fraction form
    388,052,738.25/535,514,953.91 = 220,788,995.42/x
  3. Step 3: Cross multiply
    388,052,738.25x = 535,514,953.91 × 220,788,995.42
  4. Step 4: Simplify right side
    388,052,738.25x = 118,235,808,703,733,760
  5. Step 5: Solve for x
    x = 118,235,808,703,733,760/388,052,738.25
  6. Step 6: Final answer
    x = 304,690,051.25

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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.