Home / 290,240,383.50-400,531,734.09-159,860,191.50

Finding the Fourth Proportional to 290,240,383.50, 400,531,734.09 and 159,860,191.50

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Solution

The fourth proportional to 290,240,383.50, 400,531,734.09 and 159,860,191.50 is: 220,607,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,240,383.50 : 400,531,734.09 = 159,860,191.50 : x
  2. Step 2: Convert to fraction form
    290,240,383.50/400,531,734.09 = 159,860,191.50/x
  3. Step 3: Cross multiply
    290,240,383.50x = 400,531,734.09 × 159,860,191.50
  4. Step 4: Simplify right side
    290,240,383.50x = 64,029,079,713,454,472
  5. Step 5: Solve for x
    x = 64,029,079,713,454,472/290,240,383.50
  6. Step 6: Final answer
    x = 220,607,066.95

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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.