Home / 84,739,361.10-126,938,894.13-71,729,802.06

Finding the Fourth Proportional to 84,739,361.10, 126,938,894.13 and 71,729,802.06

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Solution

The fourth proportional to 84,739,361.10, 126,938,894.13 and 71,729,802.06 is: 107,450,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739,361.10 : 126,938,894.13 = 71,729,802.06 : x
  2. Step 2: Convert to fraction form
    84,739,361.10/126,938,894.13 = 71,729,802.06/x
  3. Step 3: Cross multiply
    84,739,361.10x = 126,938,894.13 × 71,729,802.06
  4. Step 4: Simplify right side
    84,739,361.10x = 9,105,301,749,660,196
  5. Step 5: Solve for x
    x = 9,105,301,749,660,196/84,739,361.10
  6. Step 6: Final answer
    x = 107,450,677.36

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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.