Home / 20,478,006.90-30,711,411.63-7,697,528.82

Finding the Fourth Proportional to 20,478,006.90, 30,711,411.63 and 7,697,528.82

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Solution

The fourth proportional to 20,478,006.90, 30,711,411.63 and 7,697,528.82 is: 11,544,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,006.90 : 30,711,411.63 = 7,697,528.82 : x
  2. Step 2: Convert to fraction form
    20,478,006.90/30,711,411.63 = 7,697,528.82/x
  3. Step 3: Cross multiply
    20,478,006.90x = 30,711,411.63 × 7,697,528.82
  4. Step 4: Simplify right side
    20,478,006.90x = 236,401,976,124,808.19
  5. Step 5: Solve for x
    x = 236,401,976,124,808.19/20,478,006.90
  6. Step 6: Final answer
    x = 11,544,188.71

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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.