Home / 611,988,314.16-918,252,915.30-320,785,808.52

Finding the Fourth Proportional to 611,988,314.16, 918,252,915.30 and 320,785,808.52

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Solution

The fourth proportional to 611,988,314.16, 918,252,915.30 and 320,785,808.52 is: 481,320,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,988,314.16 : 918,252,915.30 = 320,785,808.52 : x
  2. Step 2: Convert to fraction form
    611,988,314.16/918,252,915.30 = 320,785,808.52/x
  3. Step 3: Cross multiply
    611,988,314.16x = 918,252,915.30 × 320,785,808.52
  4. Step 4: Simplify right side
    611,988,314.16x = 294,562,503,860,357,568
  5. Step 5: Solve for x
    x = 294,562,503,860,357,568/611,988,314.16
  6. Step 6: Final answer
    x = 481,320,471.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.