Home / 15,283,145.80-21,076,265.46-9,778,262.68

Finding the Fourth Proportional to 15,283,145.80, 21,076,265.46 and 9,778,262.68

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Solution

The fourth proportional to 15,283,145.80, 21,076,265.46 and 9,778,262.68 is: 13,484,740.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283,145.80 : 21,076,265.46 = 9,778,262.68 : x
  2. Step 2: Convert to fraction form
    15,283,145.80/21,076,265.46 = 9,778,262.68/x
  3. Step 3: Cross multiply
    15,283,145.80x = 21,076,265.46 × 9,778,262.68
  4. Step 4: Simplify right side
    15,283,145.80x = 206,089,259,981,291.03
  5. Step 5: Solve for x
    x = 206,089,259,981,291.03/15,283,145.80
  6. Step 6: Final answer
    x = 13,484,740.82

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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.