Home / 20,807,621.80-31,216,875.90-8,028,543.40

Finding the Fourth Proportional to 20,807,621.80, 31,216,875.90 and 8,028,543.40

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Solution

The fourth proportional to 20,807,621.80, 31,216,875.90 and 8,028,543.40 is: 12,044,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,621.80 : 31,216,875.90 = 8,028,543.40 : x
  2. Step 2: Convert to fraction form
    20,807,621.80/31,216,875.90 = 8,028,543.40/x
  3. Step 3: Cross multiply
    20,807,621.80x = 31,216,875.90 × 8,028,543.40
  4. Step 4: Simplify right side
    20,807,621.80x = 250,626,042,975,564.06
  5. Step 5: Solve for x
    x = 250,626,042,975,564.06/20,807,621.80
  6. Step 6: Final answer
    x = 12,044,915.34

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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.