Home / 40,011,135.84-55,215,423.48-21,676,421.34

Finding the Fourth Proportional to 40,011,135.84, 55,215,423.48 and 21,676,421.34

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Solution

The fourth proportional to 40,011,135.84, 55,215,423.48 and 21,676,421.34 is: 29,913,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,135.84 : 55,215,423.48 = 21,676,421.34 : x
  2. Step 2: Convert to fraction form
    40,011,135.84/55,215,423.48 = 21,676,421.34/x
  3. Step 3: Cross multiply
    40,011,135.84x = 55,215,423.48 × 21,676,421.34
  4. Step 4: Simplify right side
    40,011,135.84x = 1,196,872,783,819,009
  5. Step 5: Solve for x
    x = 1,196,872,783,819,009/40,011,135.84
  6. Step 6: Final answer
    x = 29,913,491.80

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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.