Home / 1,424,386,915.17-1,965,665,484.29-789,318,015.05

Finding the Fourth Proportional to 1,424,386,915.17, 1,965,665,484.29 and 789,318,015.05

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Solution

The fourth proportional to 1,424,386,915.17, 1,965,665,484.29 and 789,318,015.05 is: 1,089,265,256.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,386,915.17 : 1,965,665,484.29 = 789,318,015.05 : x
  2. Step 2: Convert to fraction form
    1,424,386,915.17/1,965,665,484.29 = 789,318,015.05/x
  3. Step 3: Cross multiply
    1,424,386,915.17x = 1,965,665,484.29 × 789,318,015.05
  4. Step 4: Simplify right side
    1,424,386,915.17x = 1,551,535,178,316,836,096
  5. Step 5: Solve for x
    x = 1,551,535,178,316,836,096/1,424,386,915.17
  6. Step 6: Final answer
    x = 1,089,265,256.37

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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.