Home / 393,792,733,855.68-543,134,142,115.92-338,953,242,561.36

Finding the Fourth Proportional to 393,792,733,855.68, 543,134,142,115.92 and 338,953,242,561.36

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Solution

The fourth proportional to 393,792,733,855.68, 543,134,142,115.92 and 338,953,242,561.36 is: 467,497,398,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,792,733,855.68 : 543,134,142,115.92 = 338,953,242,561.36 : x
  2. Step 2: Convert to fraction form
    393,792,733,855.68/543,134,142,115.92 = 338,953,242,561.36/x
  3. Step 3: Cross multiply
    393,792,733,855.68x = 543,134,142,115.92 × 338,953,242,561.36
  4. Step 4: Simplify right side
    393,792,733,855.68x = 184,097,078,615,973,600,165,888
  5. Step 5: Solve for x
    x = 184,097,078,615,973,600,165,888/393,792,733,855.68
  6. Step 6: Final answer
    x = 467,497,398,475.22

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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.