Home / 21,130,262.34-31,695,393.51-13,605,064.26

Finding the Fourth Proportional to 21,130,262.34, 31,695,393.51 and 13,605,064.26

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Solution

The fourth proportional to 21,130,262.34, 31,695,393.51 and 13,605,064.26 is: 20,407,596.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130,262.34 : 31,695,393.51 = 13,605,064.26 : x
  2. Step 2: Convert to fraction form
    21,130,262.34/31,695,393.51 = 13,605,064.26/x
  3. Step 3: Cross multiply
    21,130,262.34x = 31,695,393.51 × 13,605,064.26
  4. Step 4: Simplify right side
    21,130,262.34x = 431,217,865,449,536.94
  5. Step 5: Solve for x
    x = 431,217,865,449,536.94/21,130,262.34
  6. Step 6: Final answer
    x = 20,407,596.39

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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.