Home / 387,586,984.32-581,146,306.56-154,453,561.92

Finding the Fourth Proportional to 387,586,984.32, 581,146,306.56 and 154,453,561.92

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Solution

The fourth proportional to 387,586,984.32, 581,146,306.56 and 154,453,561.92 is: 231,587,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,586,984.32 : 581,146,306.56 = 154,453,561.92 : x
  2. Step 2: Convert to fraction form
    387,586,984.32/581,146,306.56 = 154,453,561.92/x
  3. Step 3: Cross multiply
    387,586,984.32x = 581,146,306.56 × 154,453,561.92
  4. Step 4: Simplify right side
    387,586,984.32x = 89,760,117,044,844,240
  5. Step 5: Solve for x
    x = 89,760,117,044,844,240/387,586,984.32
  6. Step 6: Final answer
    x = 231,587,026.08

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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.