Home / 1,293,109,869-1,939,681,599.66-431,466,861

Finding the Fourth Proportional to 1,293,109,869, 1,939,681,599.66 and 431,466,861

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Solution

The fourth proportional to 1,293,109,869, 1,939,681,599.66 and 431,466,861 is: 647,205,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,109,869 : 1,939,681,599.66 = 431,466,861 : x
  2. Step 2: Convert to fraction form
    1,293,109,869/1,939,681,599.66 = 431,466,861/x
  3. Step 3: Cross multiply
    1,293,109,869x = 1,939,681,599.66 × 431,466,861
  4. Step 4: Simplify right side
    1,293,109,869x = 836,908,331,144,758,912
  5. Step 5: Solve for x
    x = 836,908,331,144,758,912/1,293,109,869
  6. Step 6: Final answer
    x = 647,205,895.81

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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.