Home / 538,920,796.60-808,381,194.90-193,885,679.80

Finding the Fourth Proportional to 538,920,796.60, 808,381,194.90 and 193,885,679.80

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Solution

The fourth proportional to 538,920,796.60, 808,381,194.90 and 193,885,679.80 is: 290,828,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,920,796.60 : 808,381,194.90 = 193,885,679.80 : x
  2. Step 2: Convert to fraction form
    538,920,796.60/808,381,194.90 = 193,885,679.80/x
  3. Step 3: Cross multiply
    538,920,796.60x = 808,381,194.90 × 193,885,679.80
  4. Step 4: Simplify right side
    538,920,796.60x = 156,733,537,510,722,784
  5. Step 5: Solve for x
    x = 156,733,537,510,722,784/538,920,796.60
  6. Step 6: Final answer
    x = 290,828,519.70

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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.