Home / 85,489,471.50-128,234,207.25-37,620,415.50

Finding the Fourth Proportional to 85,489,471.50, 128,234,207.25 and 37,620,415.50

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Solution

The fourth proportional to 85,489,471.50, 128,234,207.25 and 37,620,415.50 is: 56,430,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,489,471.50 : 128,234,207.25 = 37,620,415.50 : x
  2. Step 2: Convert to fraction form
    85,489,471.50/128,234,207.25 = 37,620,415.50/x
  3. Step 3: Cross multiply
    85,489,471.50x = 128,234,207.25 × 37,620,415.50
  4. Step 4: Simplify right side
    85,489,471.50x = 4,824,224,158,058,112
  5. Step 5: Solve for x
    x = 4,824,224,158,058,112/85,489,471.50
  6. Step 6: Final answer
    x = 56,430,623.25

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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.