Home / 438,880,996.32-605,661,634.74-240,641,988.76

Finding the Fourth Proportional to 438,880,996.32, 605,661,634.74 and 240,641,988.76

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Solution

The fourth proportional to 438,880,996.32, 605,661,634.74 and 240,641,988.76 is: 332,089,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,880,996.32 : 605,661,634.74 = 240,641,988.76 : x
  2. Step 2: Convert to fraction form
    438,880,996.32/605,661,634.74 = 240,641,988.76/x
  3. Step 3: Cross multiply
    438,880,996.32x = 605,661,634.74 × 240,641,988.76
  4. Step 4: Simplify right side
    438,880,996.32x = 145,747,620,299,466,304
  5. Step 5: Solve for x
    x = 145,747,620,299,466,304/438,880,996.32
  6. Step 6: Final answer
    x = 332,089,157.47

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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.