Home / 696,039,887.88-960,560,299.08-398,739,588.84

Finding the Fourth Proportional to 696,039,887.88, 960,560,299.08 and 398,739,588.84

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Solution

The fourth proportional to 696,039,887.88, 960,560,299.08 and 398,739,588.84 is: 550,275,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,039,887.88 : 960,560,299.08 = 398,739,588.84 : x
  2. Step 2: Convert to fraction form
    696,039,887.88/960,560,299.08 = 398,739,588.84/x
  3. Step 3: Cross multiply
    696,039,887.88x = 960,560,299.08 × 398,739,588.84
  4. Step 4: Simplify right side
    696,039,887.88x = 383,013,418,711,186,624
  5. Step 5: Solve for x
    x = 383,013,418,711,186,624/696,039,887.88
  6. Step 6: Final answer
    x = 550,275,099.72

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1.5x scale

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.