Home / 20,663,122.60-30,994,683.90-7,884,044.20

Finding the Fourth Proportional to 20,663,122.60, 30,994,683.90 and 7,884,044.20

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Solution

The fourth proportional to 20,663,122.60, 30,994,683.90 and 7,884,044.20 is: 11,826,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663,122.60 : 30,994,683.90 = 7,884,044.20 : x
  2. Step 2: Convert to fraction form
    20,663,122.60/30,994,683.90 = 7,884,044.20/x
  3. Step 3: Cross multiply
    20,663,122.60x = 30,994,683.90 × 7,884,044.20
  4. Step 4: Simplify right side
    20,663,122.60x = 244,363,457,832,628.38
  5. Step 5: Solve for x
    x = 244,363,457,832,628.38/20,663,122.60
  6. Step 6: Final answer
    x = 11,826,066.30

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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.