Home / 388,275,981.75-535,465,986.08-303,514,298.82

Finding the Fourth Proportional to 388,275,981.75, 535,465,986.08 and 303,514,298.82

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Solution

The fourth proportional to 388,275,981.75, 535,465,986.08 and 303,514,298.82 is: 418,572,332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,275,981.75 : 535,465,986.08 = 303,514,298.82 : x
  2. Step 2: Convert to fraction form
    388,275,981.75/535,465,986.08 = 303,514,298.82/x
  3. Step 3: Cross multiply
    388,275,981.75x = 535,465,986.08 × 303,514,298.82
  4. Step 4: Simplify right side
    388,275,981.75x = 162,521,583,305,513,504
  5. Step 5: Solve for x
    x = 162,521,583,305,513,504/388,275,981.75
  6. Step 6: Final answer
    x = 418,572,332.42

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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.