Home / 20,709,666.50-31,057,738.47-6,872,908.32

Finding the Fourth Proportional to 20,709,666.50, 31,057,738.47 and 6,872,908.32

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Solution

The fourth proportional to 20,709,666.50, 31,057,738.47 and 6,872,908.32 is: 10,307,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,709,666.50 : 31,057,738.47 = 6,872,908.32 : x
  2. Step 2: Convert to fraction form
    20,709,666.50/31,057,738.47 = 6,872,908.32/x
  3. Step 3: Cross multiply
    20,709,666.50x = 31,057,738.47 × 6,872,908.32
  4. Step 4: Simplify right side
    20,709,666.50x = 213,456,989,130,847.06
  5. Step 5: Solve for x
    x = 213,456,989,130,847.06/20,709,666.50
  6. Step 6: Final answer
    x = 10,307,118.62

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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.