Home / 1,346,065,948.32-1,857,880,945.22-789,328,356.72

Finding the Fourth Proportional to 1,346,065,948.32, 1,857,880,945.22 and 789,328,356.72

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Solution

The fourth proportional to 1,346,065,948.32, 1,857,880,945.22 and 789,328,356.72 is: 1,089,454,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,065,948.32 : 1,857,880,945.22 = 789,328,356.72 : x
  2. Step 2: Convert to fraction form
    1,346,065,948.32/1,857,880,945.22 = 789,328,356.72/x
  3. Step 3: Cross multiply
    1,346,065,948.32x = 1,857,880,945.22 × 789,328,356.72
  4. Step 4: Simplify right side
    1,346,065,948.32x = 1,466,478,113,471,902,976
  5. Step 5: Solve for x
    x = 1,466,478,113,471,902,976/1,346,065,948.32
  6. Step 6: Final answer
    x = 1,089,454,877.97

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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.