Home / 369,871,959.43-510,431,551.73-211,098,897.79

Finding the Fourth Proportional to 369,871,959.43, 510,431,551.73 and 211,098,897.79

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Solution

The fourth proportional to 369,871,959.43, 510,431,551.73 and 211,098,897.79 is: 291,321,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,871,959.43 : 510,431,551.73 = 211,098,897.79 : x
  2. Step 2: Convert to fraction form
    369,871,959.43/510,431,551.73 = 211,098,897.79/x
  3. Step 3: Cross multiply
    369,871,959.43x = 510,431,551.73 × 211,098,897.79
  4. Step 4: Simplify right side
    369,871,959.43x = 107,751,537,966,386,880
  5. Step 5: Solve for x
    x = 107,751,537,966,386,880/369,871,959.43
  6. Step 6: Final answer
    x = 291,321,186.21

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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.