Home / 28,274,943.51-39,019,578.53-15,885,559.35

Finding the Fourth Proportional to 28,274,943.51, 39,019,578.53 and 15,885,559.35

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Solution

The fourth proportional to 28,274,943.51, 39,019,578.53 and 15,885,559.35 is: 21,922,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274,943.51 : 39,019,578.53 = 15,885,559.35 : x
  2. Step 2: Convert to fraction form
    28,274,943.51/39,019,578.53 = 15,885,559.35/x
  3. Step 3: Cross multiply
    28,274,943.51x = 39,019,578.53 × 15,885,559.35
  4. Step 4: Simplify right side
    28,274,943.51x = 619,847,830,470,872.88
  5. Step 5: Solve for x
    x = 619,847,830,470,872.88/28,274,943.51
  6. Step 6: Final answer
    x = 21,922,159.82

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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.