Home / 680,614,600.30-1,020,921,900.45-665,498,056.30

Finding the Fourth Proportional to 680,614,600.30, 1,020,921,900.45 and 665,498,056.30

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Solution

The fourth proportional to 680,614,600.30, 1,020,921,900.45 and 665,498,056.30 is: 998,247,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,614,600.30 : 1,020,921,900.45 = 665,498,056.30 : x
  2. Step 2: Convert to fraction form
    680,614,600.30/1,020,921,900.45 = 665,498,056.30/x
  3. Step 3: Cross multiply
    680,614,600.30x = 1,020,921,900.45 × 665,498,056.30
  4. Step 4: Simplify right side
    680,614,600.30x = 679,421,540,383,577,088
  5. Step 5: Solve for x
    x = 679,421,540,383,577,088/680,614,600.30
  6. Step 6: Final answer
    x = 998,247,084.45

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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.