Home / 288,147,942.01-397,644,288.35-155,988,934.25

Finding the Fourth Proportional to 288,147,942.01, 397,644,288.35 and 155,988,934.25

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Solution

The fourth proportional to 288,147,942.01, 397,644,288.35 and 155,988,934.25 is: 215,264,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,147,942.01 : 397,644,288.35 = 155,988,934.25 : x
  2. Step 2: Convert to fraction form
    288,147,942.01/397,644,288.35 = 155,988,934.25/x
  3. Step 3: Cross multiply
    288,147,942.01x = 397,644,288.35 × 155,988,934.25
  4. Step 4: Simplify right side
    288,147,942.01x = 62,028,108,750,316,192
  5. Step 5: Solve for x
    x = 62,028,108,750,316,192/288,147,942.01
  6. Step 6: Final answer
    x = 215,264,798.77

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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.