Home / 20,706,629.48-28,575,176.10-11,539,071.08

Finding the Fourth Proportional to 20,706,629.48, 28,575,176.10 and 11,539,071.08

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Solution

The fourth proportional to 20,706,629.48, 28,575,176.10 and 11,539,071.08 is: 15,923,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706,629.48 : 28,575,176.10 = 11,539,071.08 : x
  2. Step 2: Convert to fraction form
    20,706,629.48/28,575,176.10 = 11,539,071.08/x
  3. Step 3: Cross multiply
    20,706,629.48x = 28,575,176.10 × 11,539,071.08
  4. Step 4: Simplify right side
    20,706,629.48x = 329,730,988,141,417.19
  5. Step 5: Solve for x
    x = 329,730,988,141,417.19/20,706,629.48
  6. Step 6: Final answer
    x = 15,923,933.37

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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.