Home / 38,020,948.80-56,989,432.80-20,993,841.60

Finding the Fourth Proportional to 38,020,948.80, 56,989,432.80 and 20,993,841.60

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Solution

The fourth proportional to 38,020,948.80, 56,989,432.80 and 20,993,841.60 is: 31,467,576.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,020,948.80 : 56,989,432.80 = 20,993,841.60 : x
  2. Step 2: Convert to fraction form
    38,020,948.80/56,989,432.80 = 20,993,841.60/x
  3. Step 3: Cross multiply
    38,020,948.80x = 56,989,432.80 × 20,993,841.60
  4. Step 4: Simplify right side
    38,020,948.80x = 1,196,427,125,077,044.50
  5. Step 5: Solve for x
    x = 1,196,427,125,077,044.50/38,020,948.80
  6. Step 6: Final answer
    x = 31,467,576.77

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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.