Home / 20,771,681.88-31,158,485.10-6,395,393.64

Finding the Fourth Proportional to 20,771,681.88, 31,158,485.10 and 6,395,393.64

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Solution

The fourth proportional to 20,771,681.88, 31,158,485.10 and 6,395,393.64 is: 9,593,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,681.88 : 31,158,485.10 = 6,395,393.64 : x
  2. Step 2: Convert to fraction form
    20,771,681.88/31,158,485.10 = 6,395,393.64/x
  3. Step 3: Cross multiply
    20,771,681.88x = 31,158,485.10 × 6,395,393.64
  4. Step 4: Simplify right side
    20,771,681.88x = 199,270,777,440,574.75
  5. Step 5: Solve for x
    x = 199,270,777,440,574.75/20,771,681.88
  6. Step 6: Final answer
    x = 9,593,386.74

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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.