Home / 1,672,137,990.74-2,307,616,915.66-919,512,870.50

Finding the Fourth Proportional to 1,672,137,990.74, 2,307,616,915.66 and 919,512,870.50

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Solution

The fourth proportional to 1,672,137,990.74, 2,307,616,915.66 and 919,512,870.50 is: 1,268,964,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672,137,990.74 : 2,307,616,915.66 = 919,512,870.50 : x
  2. Step 2: Convert to fraction form
    1,672,137,990.74/2,307,616,915.66 = 919,512,870.50/x
  3. Step 3: Cross multiply
    1,672,137,990.74x = 2,307,616,915.66 × 919,512,870.50
  4. Step 4: Simplify right side
    1,672,137,990.74x = 2,121,883,454,119,045,888
  5. Step 5: Solve for x
    x = 2,121,883,454,119,045,888/1,672,137,990.74
  6. Step 6: Final answer
    x = 1,268,964,323.44

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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.