Home / 21,031,999.20-31,547,998.80-13,851,640.80

Finding the Fourth Proportional to 21,031,999.20, 31,547,998.80 and 13,851,640.80

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Solution

The fourth proportional to 21,031,999.20, 31,547,998.80 and 13,851,640.80 is: 20,777,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,999.20 : 31,547,998.80 = 13,851,640.80 : x
  2. Step 2: Convert to fraction form
    21,031,999.20/31,547,998.80 = 13,851,640.80/x
  3. Step 3: Cross multiply
    21,031,999.20x = 31,547,998.80 × 13,851,640.80
  4. Step 4: Simplify right side
    21,031,999.20x = 436,991,547,336,431.06
  5. Step 5: Solve for x
    x = 436,991,547,336,431.06/21,031,999.20
  6. Step 6: Final answer
    x = 20,777,461.20

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1.5x scale

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.