Home / 401,609,218.22-554,440,632.78-281,092,693.46

Finding the Fourth Proportional to 401,609,218.22, 554,440,632.78 and 281,092,693.46

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Solution

The fourth proportional to 401,609,218.22, 554,440,632.78 and 281,092,693.46 is: 388,061,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,609,218.22 : 554,440,632.78 = 281,092,693.46 : x
  2. Step 2: Convert to fraction form
    401,609,218.22/554,440,632.78 = 281,092,693.46/x
  3. Step 3: Cross multiply
    401,609,218.22x = 554,440,632.78 × 281,092,693.46
  4. Step 4: Simplify right side
    401,609,218.22x = 155,849,210,831,796,960
  5. Step 5: Solve for x
    x = 155,849,210,831,796,960/401,609,218.22
  6. Step 6: Final answer
    x = 388,061,836.63

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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.