Home / 30,172,710.41-45,288,294.87-28,534,100.66

Finding the Fourth Proportional to 30,172,710.41, 45,288,294.87 and 28,534,100.66

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Solution

The fourth proportional to 30,172,710.41, 45,288,294.87 and 28,534,100.66 is: 42,828,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172,710.41 : 45,288,294.87 = 28,534,100.66 : x
  2. Step 2: Convert to fraction form
    30,172,710.41/45,288,294.87 = 28,534,100.66/x
  3. Step 3: Cross multiply
    30,172,710.41x = 45,288,294.87 × 28,534,100.66
  4. Step 4: Simplify right side
    30,172,710.41x = 1,292,260,764,540,341.50
  5. Step 5: Solve for x
    x = 1,292,260,764,540,341.50/30,172,710.41
  6. Step 6: Final answer
    x = 42,828,792.87

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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.