Home / 415,436,632.80-570,300,440-356,597,147.52

Finding the Fourth Proportional to 415,436,632.80, 570,300,440 and 356,597,147.52

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Solution

The fourth proportional to 415,436,632.80, 570,300,440 and 356,597,147.52 is: 489,527,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,436,632.80 : 570,300,440 = 356,597,147.52 : x
  2. Step 2: Convert to fraction form
    415,436,632.80/570,300,440 = 356,597,147.52/x
  3. Step 3: Cross multiply
    415,436,632.80x = 570,300,440 × 356,597,147.52
  4. Step 4: Simplify right side
    415,436,632.80x = 203,367,510,133,400,896
  5. Step 5: Solve for x
    x = 203,367,510,133,400,896/415,436,632.80
  6. Step 6: Final answer
    x = 489,527,148.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.