Home / 395,356,127.40-545,406,915.78-248,759,242.92

Finding the Fourth Proportional to 395,356,127.40, 545,406,915.78 and 248,759,242.92

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Solution

The fourth proportional to 395,356,127.40, 545,406,915.78 and 248,759,242.92 is: 343,171,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,356,127.40 : 545,406,915.78 = 248,759,242.92 : x
  2. Step 2: Convert to fraction form
    395,356,127.40/545,406,915.78 = 248,759,242.92/x
  3. Step 3: Cross multiply
    395,356,127.40x = 545,406,915.78 × 248,759,242.92
  4. Step 4: Simplify right side
    395,356,127.40x = 135,675,011,452,764,992
  5. Step 5: Solve for x
    x = 135,675,011,452,764,992/395,356,127.40
  6. Step 6: Final answer
    x = 343,171,642.10

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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.