Home / 20,661,130.60-30,982,119.02-7,703,802.21

Finding the Fourth Proportional to 20,661,130.60, 30,982,119.02 and 7,703,802.21

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Solution

The fourth proportional to 20,661,130.60, 30,982,119.02 and 7,703,802.21 is: 11,552,132.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661,130.60 : 30,982,119.02 = 7,703,802.21 : x
  2. Step 2: Convert to fraction form
    20,661,130.60/30,982,119.02 = 7,703,802.21/x
  3. Step 3: Cross multiply
    20,661,130.60x = 30,982,119.02 × 7,703,802.21
  4. Step 4: Simplify right side
    20,661,130.60x = 238,680,117,017,845.81
  5. Step 5: Solve for x
    x = 238,680,117,017,845.81/20,661,130.60
  6. Step 6: Final answer
    x = 11,552,132.44

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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.