Home / 885,146,939.70-1,327,720,409.55-425,981,915.70

Finding the Fourth Proportional to 885,146,939.70, 1,327,720,409.55 and 425,981,915.70

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Solution

The fourth proportional to 885,146,939.70, 1,327,720,409.55 and 425,981,915.70 is: 638,972,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,146,939.70 : 1,327,720,409.55 = 425,981,915.70 : x
  2. Step 2: Convert to fraction form
    885,146,939.70/1,327,720,409.55 = 425,981,915.70/x
  3. Step 3: Cross multiply
    885,146,939.70x = 1,327,720,409.55 × 425,981,915.70
  4. Step 4: Simplify right side
    885,146,939.70x = 565,584,883,574,097,536
  5. Step 5: Solve for x
    x = 565,584,883,574,097,536/885,146,939.70
  6. Step 6: Final answer
    x = 638,972,873.55

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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.