Home / 21,312,612.20-31,932,176.70-9,929,714.60

Finding the Fourth Proportional to 21,312,612.20, 31,932,176.70 and 9,929,714.60

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Solution

The fourth proportional to 21,312,612.20, 31,932,176.70 and 9,929,714.60 is: 14,877,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,612.20 : 31,932,176.70 = 9,929,714.60 : x
  2. Step 2: Convert to fraction form
    21,312,612.20/31,932,176.70 = 9,929,714.60/x
  3. Step 3: Cross multiply
    21,312,612.20x = 31,932,176.70 × 9,929,714.60
  4. Step 4: Simplify right side
    21,312,612.20x = 317,077,401,187,769.81
  5. Step 5: Solve for x
    x = 317,077,401,187,769.81/21,312,612.20
  6. Step 6: Final answer
    x = 14,877,453.70

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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.