Home / 28,459,902.84-39,274,790.68-15,407,161.36

Finding the Fourth Proportional to 28,459,902.84, 39,274,790.68 and 15,407,161.36

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Solution

The fourth proportional to 28,459,902.84, 39,274,790.68 and 15,407,161.36 is: 21,261,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,902.84 : 39,274,790.68 = 15,407,161.36 : x
  2. Step 2: Convert to fraction form
    28,459,902.84/39,274,790.68 = 15,407,161.36/x
  3. Step 3: Cross multiply
    28,459,902.84x = 39,274,790.68 × 15,407,161.36
  4. Step 4: Simplify right side
    28,459,902.84x = 605,113,037,386,984.12
  5. Step 5: Solve for x
    x = 605,113,037,386,984.12/28,459,902.84
  6. Step 6: Final answer
    x = 21,261,950.22

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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.