Home / 20,174,421.40-30,261,632.10-17,780,968.60

Finding the Fourth Proportional to 20,174,421.40, 30,261,632.10 and 17,780,968.60

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Solution

The fourth proportional to 20,174,421.40, 30,261,632.10 and 17,780,968.60 is: 26,671,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174,421.40 : 30,261,632.10 = 17,780,968.60 : x
  2. Step 2: Convert to fraction form
    20,174,421.40/30,261,632.10 = 17,780,968.60/x
  3. Step 3: Cross multiply
    20,174,421.40x = 30,261,632.10 × 17,780,968.60
  4. Step 4: Simplify right side
    20,174,421.40x = 538,081,130,154,852.12
  5. Step 5: Solve for x
    x = 538,081,130,154,852.12/20,174,421.40
  6. Step 6: Final answer
    x = 26,671,452.90

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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.