Home / 30,347,356.10-45,521,034.15-28,331,816.90

Finding the Fourth Proportional to 30,347,356.10, 45,521,034.15 and 28,331,816.90

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Solution

The fourth proportional to 30,347,356.10, 45,521,034.15 and 28,331,816.90 is: 42,497,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347,356.10 : 45,521,034.15 = 28,331,816.90 : x
  2. Step 2: Convert to fraction form
    30,347,356.10/45,521,034.15 = 28,331,816.90/x
  3. Step 3: Cross multiply
    30,347,356.10x = 45,521,034.15 × 28,331,816.90
  4. Step 4: Simplify right side
    30,347,356.10x = 1,289,693,604,636,447
  5. Step 5: Solve for x
    x = 1,289,693,604,636,447/30,347,356.10
  6. Step 6: Final answer
    x = 42,497,725.35

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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.