Home / 28,565,622.18-42,842,853.85-9,129,634.60

Finding the Fourth Proportional to 28,565,622.18, 42,842,853.85 and 9,129,634.60

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Solution

The fourth proportional to 28,565,622.18, 42,842,853.85 and 9,129,634.60 is: 13,692,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565,622.18 : 42,842,853.85 = 9,129,634.60 : x
  2. Step 2: Convert to fraction form
    28,565,622.18/42,842,853.85 = 9,129,634.60/x
  3. Step 3: Cross multiply
    28,565,622.18x = 42,842,853.85 × 9,129,634.60
  4. Step 4: Simplify right side
    28,565,622.18x = 391,139,600,871,703.19
  5. Step 5: Solve for x
    x = 391,139,600,871,703.19/28,565,622.18
  6. Step 6: Final answer
    x = 13,692,668.71

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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.