Home / 84,739,361.85-126,938,895.26-71,729,802.81

Finding the Fourth Proportional to 84,739,361.85, 126,938,895.26 and 71,729,802.81

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Solution

The fourth proportional to 84,739,361.85, 126,938,895.26 and 71,729,802.81 is: 107,450,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739,361.85 : 126,938,895.26 = 71,729,802.81 : x
  2. Step 2: Convert to fraction form
    84,739,361.85/126,938,895.26 = 71,729,802.81/x
  3. Step 3: Cross multiply
    84,739,361.85x = 126,938,895.26 × 71,729,802.81
  4. Step 4: Simplify right side
    84,739,361.85x = 9,105,301,925,560,394
  5. Step 5: Solve for x
    x = 9,105,301,925,560,394/84,739,361.85
  6. Step 6: Final answer
    x = 107,450,678.49

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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.