Home / 1,259,348,101.65-1,738,457,722.89-813,528,889.16

Finding the Fourth Proportional to 1,259,348,101.65, 1,738,457,722.89 and 813,528,889.16

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Solution

The fourth proportional to 1,259,348,101.65, 1,738,457,722.89 and 813,528,889.16 is: 1,123,029,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,348,101.65 : 1,738,457,722.89 = 813,528,889.16 : x
  2. Step 2: Convert to fraction form
    1,259,348,101.65/1,738,457,722.89 = 813,528,889.16/x
  3. Step 3: Cross multiply
    1,259,348,101.65x = 1,738,457,722.89 × 813,528,889.16
  4. Step 4: Simplify right side
    1,259,348,101.65x = 1,414,285,580,145,632,512
  5. Step 5: Solve for x
    x = 1,414,285,580,145,632,512/1,259,348,101.65
  6. Step 6: Final answer
    x = 1,123,029,905.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.