Home / 30,588,434.40-42,213,153.21-16,649,115.72

Finding the Fourth Proportional to 30,588,434.40, 42,213,153.21 and 16,649,115.72

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Solution

The fourth proportional to 30,588,434.40, 42,213,153.21 and 16,649,115.72 is: 22,976,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588,434.40 : 42,213,153.21 = 16,649,115.72 : x
  2. Step 2: Convert to fraction form
    30,588,434.40/42,213,153.21 = 16,649,115.72/x
  3. Step 3: Cross multiply
    30,588,434.40x = 42,213,153.21 × 16,649,115.72
  4. Step 4: Simplify right side
    30,588,434.40x = 702,811,672,699,379.50
  5. Step 5: Solve for x
    x = 702,811,672,699,379.50/30,588,434.40
  6. Step 6: Final answer
    x = 22,976,385.90

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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.