Home / 20,045,513.88-27,662,808.15-10,878,156.63

Finding the Fourth Proportional to 20,045,513.88, 27,662,808.15 and 10,878,156.63

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Solution

The fourth proportional to 20,045,513.88, 27,662,808.15 and 10,878,156.63 is: 15,011,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045,513.88 : 27,662,808.15 = 10,878,156.63 : x
  2. Step 2: Convert to fraction form
    20,045,513.88/27,662,808.15 = 10,878,156.63/x
  3. Step 3: Cross multiply
    20,045,513.88x = 27,662,808.15 × 10,878,156.63
  4. Step 4: Simplify right side
    20,045,513.88x = 300,920,359,881,340.56
  5. Step 5: Solve for x
    x = 300,920,359,881,340.56/20,045,513.88
  6. Step 6: Final answer
    x = 15,011,855.60

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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.