Home / 82,503,303.80-123,565,998.90-42,066,548.60

Finding the Fourth Proportional to 82,503,303.80, 123,565,998.90 and 42,066,548.60

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Solution

The fourth proportional to 82,503,303.80, 123,565,998.90 and 42,066,548.60 is: 63,003,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,503,303.80 : 123,565,998.90 = 42,066,548.60 : x
  2. Step 2: Convert to fraction form
    82,503,303.80/123,565,998.90 = 42,066,548.60/x
  3. Step 3: Cross multiply
    82,503,303.80x = 123,565,998.90 × 42,066,548.60
  4. Step 4: Simplify right side
    82,503,303.80x = 5,197,995,098,034,397
  5. Step 5: Solve for x
    x = 5,197,995,098,034,397/82,503,303.80
  6. Step 6: Final answer
    x = 63,003,478.15

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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.