Home / 665,280,674.20-997,921,011.30-276,974,450.20

Finding the Fourth Proportional to 665,280,674.20, 997,921,011.30 and 276,974,450.20

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Solution

The fourth proportional to 665,280,674.20, 997,921,011.30 and 276,974,450.20 is: 415,461,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,280,674.20 : 997,921,011.30 = 276,974,450.20 : x
  2. Step 2: Convert to fraction form
    665,280,674.20/997,921,011.30 = 276,974,450.20/x
  3. Step 3: Cross multiply
    665,280,674.20x = 997,921,011.30 × 276,974,450.20
  4. Step 4: Simplify right side
    665,280,674.20x = 276,398,623,447,845,472
  5. Step 5: Solve for x
    x = 276,398,623,447,845,472/665,280,674.20
  6. Step 6: Final answer
    x = 415,461,675.30

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Double scale
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Similar ratio
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1.5x scale

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.