Home / 28,136,103.47-38,827,822.80-15,259,047.47

Finding the Fourth Proportional to 28,136,103.47, 38,827,822.80 and 15,259,047.47

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Solution

The fourth proportional to 28,136,103.47, 38,827,822.80 and 15,259,047.47 is: 21,057,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136,103.47 : 38,827,822.80 = 15,259,047.47 : x
  2. Step 2: Convert to fraction form
    28,136,103.47/38,827,822.80 = 15,259,047.47/x
  3. Step 3: Cross multiply
    28,136,103.47x = 38,827,822.80 × 15,259,047.47
  4. Step 4: Simplify right side
    28,136,103.47x = 592,475,591,270,635
  5. Step 5: Solve for x
    x = 592,475,591,270,635/28,136,103.47
  6. Step 6: Final answer
    x = 21,057,485.52

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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.