Home / 1,289,513,718.72-1,934,269,396.42-404,205,446.16

Finding the Fourth Proportional to 1,289,513,718.72, 1,934,269,396.42 and 404,205,446.16

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Solution

The fourth proportional to 1,289,513,718.72, 1,934,269,396.42 and 404,205,446.16 is: 606,307,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,513,718.72 : 1,934,269,396.42 = 404,205,446.16 : x
  2. Step 2: Convert to fraction form
    1,289,513,718.72/1,934,269,396.42 = 404,205,446.16/x
  3. Step 3: Cross multiply
    1,289,513,718.72x = 1,934,269,396.42 × 404,205,446.16
  4. Step 4: Simplify right side
    1,289,513,718.72x = 781,842,224,373,580,032
  5. Step 5: Solve for x
    x = 781,842,224,373,580,032/1,289,513,718.72
  6. Step 6: Final answer
    x = 606,307,798.84

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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.