Home / 139,968,137.10-209,952,205.65-49,079,916.30

Finding the Fourth Proportional to 139,968,137.10, 209,952,205.65 and 49,079,916.30

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Solution

The fourth proportional to 139,968,137.10, 209,952,205.65 and 49,079,916.30 is: 73,619,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,137.10 : 209,952,205.65 = 49,079,916.30 : x
  2. Step 2: Convert to fraction form
    139,968,137.10/209,952,205.65 = 49,079,916.30/x
  3. Step 3: Cross multiply
    139,968,137.10x = 209,952,205.65 × 49,079,916.30
  4. Step 4: Simplify right side
    139,968,137.10x = 10,304,436,680,302,386
  5. Step 5: Solve for x
    x = 10,304,436,680,302,386/139,968,137.10
  6. Step 6: Final answer
    x = 73,619,874.45

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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.