Home / 30,172,711.92-45,288,297.12-28,534,102.16

Finding the Fourth Proportional to 30,172,711.92, 45,288,297.12 and 28,534,102.16

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Solution

The fourth proportional to 30,172,711.92, 45,288,297.12 and 28,534,102.16 is: 42,828,795.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172,711.92 : 45,288,297.12 = 28,534,102.16 : x
  2. Step 2: Convert to fraction form
    30,172,711.92/45,288,297.12 = 28,534,102.16/x
  3. Step 3: Cross multiply
    30,172,711.92x = 45,288,297.12 × 28,534,102.16
  4. Step 4: Simplify right side
    30,172,711.92x = 1,292,260,896,674,513.75
  5. Step 5: Solve for x
    x = 1,292,260,896,674,513.75/30,172,711.92
  6. Step 6: Final answer
    x = 42,828,795.11

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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.