Home / 30,687,676.58-42,348,392.78-16,749,131.78

Finding the Fourth Proportional to 30,687,676.58, 42,348,392.78 and 16,749,131.78

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Solution

The fourth proportional to 30,687,676.58, 42,348,392.78 and 16,749,131.78 is: 23,113,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687,676.58 : 42,348,392.78 = 16,749,131.78 : x
  2. Step 2: Convert to fraction form
    30,687,676.58/42,348,392.78 = 16,749,131.78/x
  3. Step 3: Cross multiply
    30,687,676.58x = 42,348,392.78 × 16,749,131.78
  4. Step 4: Simplify right side
    30,687,676.58x = 709,298,811,343,420.50
  5. Step 5: Solve for x
    x = 709,298,811,343,420.50/30,687,676.58
  6. Step 6: Final answer
    x = 23,113,473.89

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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.