Home / 1,289,513,708.71-1,934,269,381.43-404,205,436.15

Finding the Fourth Proportional to 1,289,513,708.71, 1,934,269,381.43 and 404,205,436.15

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Solution

The fourth proportional to 1,289,513,708.71, 1,934,269,381.43 and 404,205,436.15 is: 606,307,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,513,708.71 : 1,934,269,381.43 = 404,205,436.15 : x
  2. Step 2: Convert to fraction form
    1,289,513,708.71/1,934,269,381.43 = 404,205,436.15/x
  3. Step 3: Cross multiply
    1,289,513,708.71x = 1,934,269,381.43 × 404,205,436.15
  4. Step 4: Simplify right side
    1,289,513,708.71x = 781,842,198,952,503,808
  5. Step 5: Solve for x
    x = 781,842,198,952,503,808/1,289,513,708.71
  6. Step 6: Final answer
    x = 606,307,783.83

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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.