Home / 20,045,420.84-27,662,698.74-10,878,063.56

Finding the Fourth Proportional to 20,045,420.84, 27,662,698.74 and 10,878,063.56

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Solution

The fourth proportional to 20,045,420.84, 27,662,698.74 and 10,878,063.56 is: 15,011,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045,420.84 : 27,662,698.74 = 10,878,063.56 : x
  2. Step 2: Convert to fraction form
    20,045,420.84/27,662,698.74 = 10,878,063.56/x
  3. Step 3: Cross multiply
    20,045,420.84x = 27,662,698.74 × 10,878,063.56
  4. Step 4: Simplify right side
    20,045,420.84x = 300,916,595,134,851.94
  5. Step 5: Solve for x
    x = 300,916,595,134,851.94/20,045,420.84
  6. Step 6: Final answer
    x = 15,011,737.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.