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Finding the Fourth Proportional to 1,090,658,800.38, 1,638,409,578.92 and 676,441,728.15

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Solution

The fourth proportional to 1,090,658,800.38, 1,638,409,578.92 and 676,441,728.15 is: 1,016,164,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,658,800.38 : 1,638,409,578.92 = 676,441,728.15 : x
  2. Step 2: Convert to fraction form
    1,090,658,800.38/1,638,409,578.92 = 676,441,728.15/x
  3. Step 3: Cross multiply
    1,090,658,800.38x = 1,638,409,578.92 × 676,441,728.15
  4. Step 4: Simplify right side
    1,090,658,800.38x = 1,108,288,606,978,776,320
  5. Step 5: Solve for x
    x = 1,108,288,606,978,776,320/1,090,658,800.38
  6. Step 6: Final answer
    x = 1,016,164,364.69

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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.