Home / 21,026,101.80-31,489,386.30-14,257,871.40

Finding the Fourth Proportional to 21,026,101.80, 31,489,386.30 and 14,257,871.40

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Solution

The fourth proportional to 21,026,101.80, 31,489,386.30 and 14,257,871.40 is: 21,353,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,101.80 : 31,489,386.30 = 14,257,871.40 : x
  2. Step 2: Convert to fraction form
    21,026,101.80/31,489,386.30 = 14,257,871.40/x
  3. Step 3: Cross multiply
    21,026,101.80x = 31,489,386.30 × 14,257,871.40
  4. Step 4: Simplify right side
    21,026,101.80x = 448,971,620,330,321.81
  5. Step 5: Solve for x
    x = 448,971,620,330,321.81/21,026,101.80
  6. Step 6: Final answer
    x = 21,353,060.33

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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.