Home / 210,810,484.70-315,755,188.56-87,615,287.54

Finding the Fourth Proportional to 210,810,484.70, 315,755,188.56 and 87,615,287.54

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Solution

The fourth proportional to 210,810,484.70, 315,755,188.56 and 87,615,287.54 is: 131,231,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,810,484.70 : 315,755,188.56 = 87,615,287.54 : x
  2. Step 2: Convert to fraction form
    210,810,484.70/315,755,188.56 = 87,615,287.54/x
  3. Step 3: Cross multiply
    210,810,484.70x = 315,755,188.56 × 87,615,287.54
  4. Step 4: Simplify right side
    210,810,484.70x = 27,664,981,637,931,320
  5. Step 5: Solve for x
    x = 27,664,981,637,931,320/210,810,484.70
  6. Step 6: Final answer
    x = 131,231,526.16

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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.