Home / 371,098,661.36-512,205,344.08-212,420,767.76

Finding the Fourth Proportional to 371,098,661.36, 512,205,344.08 and 212,420,767.76

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Solution

The fourth proportional to 371,098,661.36, 512,205,344.08 and 212,420,767.76 is: 293,191,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,098,661.36 : 512,205,344.08 = 212,420,767.76 : x
  2. Step 2: Convert to fraction form
    371,098,661.36/512,205,344.08 = 212,420,767.76/x
  3. Step 3: Cross multiply
    371,098,661.36x = 512,205,344.08 × 212,420,767.76
  4. Step 4: Simplify right side
    371,098,661.36x = 108,803,052,440,248,560
  5. Step 5: Solve for x
    x = 108,803,052,440,248,560/371,098,661.36
  6. Step 6: Final answer
    x = 293,191,713.60

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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.