Home / 921,457,371.38-1,382,177,720.50-291,189,532.64

Finding the Fourth Proportional to 921,457,371.38, 1,382,177,720.50 and 291,189,532.64

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Solution

The fourth proportional to 921,457,371.38, 1,382,177,720.50 and 291,189,532.64 is: 436,781,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,457,371.38 : 1,382,177,720.50 = 291,189,532.64 : x
  2. Step 2: Convert to fraction form
    921,457,371.38/1,382,177,720.50 = 291,189,532.64/x
  3. Step 3: Cross multiply
    921,457,371.38x = 1,382,177,720.50 × 291,189,532.64
  4. Step 4: Simplify right side
    921,457,371.38x = 402,475,684,450,176,640
  5. Step 5: Solve for x
    x = 402,475,684,450,176,640/921,457,371.38
  6. Step 6: Final answer
    x = 436,781,664.52

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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.