Home / 640,064,122.40-960,096,183.60-614,981,856.80

Finding the Fourth Proportional to 640,064,122.40, 960,096,183.60 and 614,981,856.80

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Solution

The fourth proportional to 640,064,122.40, 960,096,183.60 and 614,981,856.80 is: 922,472,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,064,122.40 : 960,096,183.60 = 614,981,856.80 : x
  2. Step 2: Convert to fraction form
    640,064,122.40/960,096,183.60 = 614,981,856.80/x
  3. Step 3: Cross multiply
    640,064,122.40x = 960,096,183.60 × 614,981,856.80
  4. Step 4: Simplify right side
    640,064,122.40x = 590,441,733,696,921,728
  5. Step 5: Solve for x
    x = 590,441,733,696,921,728/640,064,122.40
  6. Step 6: Final answer
    x = 922,472,785.20

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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.