Home / 31,672,858.20-47,490,041.70-12,481,495.80

Finding the Fourth Proportional to 31,672,858.20, 47,490,041.70 and 12,481,495.80

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Solution

The fourth proportional to 31,672,858.20, 47,490,041.70 and 12,481,495.80 is: 18,714,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672,858.20 : 47,490,041.70 = 12,481,495.80 : x
  2. Step 2: Convert to fraction form
    31,672,858.20/47,490,041.70 = 12,481,495.80/x
  3. Step 3: Cross multiply
    31,672,858.20x = 47,490,041.70 × 12,481,495.80
  4. Step 4: Simplify right side
    31,672,858.20x = 592,746,756,020,374.88
  5. Step 5: Solve for x
    x = 592,746,756,020,374.88/31,672,858.20
  6. Step 6: Final answer
    x = 18,714,659.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.