Home / 40,011,134.84-55,215,422.10-21,676,420.34

Finding the Fourth Proportional to 40,011,134.84, 55,215,422.10 and 21,676,420.34

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Solution

The fourth proportional to 40,011,134.84, 55,215,422.10 and 21,676,420.34 is: 29,913,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,134.84 : 55,215,422.10 = 21,676,420.34 : x
  2. Step 2: Convert to fraction form
    40,011,134.84/55,215,422.10 = 21,676,420.34/x
  3. Step 3: Cross multiply
    40,011,134.84x = 55,215,422.10 × 21,676,420.34
  4. Step 4: Simplify right side
    40,011,134.84x = 1,196,872,698,690,125.50
  5. Step 5: Solve for x
    x = 1,196,872,698,690,125.50/40,011,134.84
  6. Step 6: Final answer
    x = 29,913,490.42

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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.