Home / 15,262,904.80-21,058,215.60-9,149,102.56

Finding the Fourth Proportional to 15,262,904.80, 21,058,215.60 and 9,149,102.56

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Solution

The fourth proportional to 15,262,904.80, 21,058,215.60 and 9,149,102.56 is: 12,623,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,262,904.80 : 21,058,215.60 = 9,149,102.56 : x
  2. Step 2: Convert to fraction form
    15,262,904.80/21,058,215.60 = 9,149,102.56/x
  3. Step 3: Cross multiply
    15,262,904.80x = 21,058,215.60 × 9,149,102.56
  4. Step 4: Simplify right side
    15,262,904.80x = 192,663,774,254,991.97
  5. Step 5: Solve for x
    x = 192,663,774,254,991.97/15,262,904.80
  6. Step 6: Final answer
    x = 12,623,008.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.