Home / 18,907,341.30-28,361,011.95-12,450,333.15

Finding the Fourth Proportional to 18,907,341.30, 28,361,011.95 and 12,450,333.15

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Solution

The fourth proportional to 18,907,341.30, 28,361,011.95 and 12,450,333.15 is: 18,675,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907,341.30 : 28,361,011.95 = 12,450,333.15 : x
  2. Step 2: Convert to fraction form
    18,907,341.30/28,361,011.95 = 12,450,333.15/x
  3. Step 3: Cross multiply
    18,907,341.30x = 28,361,011.95 × 12,450,333.15
  4. Step 4: Simplify right side
    18,907,341.30x = 353,104,047,248,631.12
  5. Step 5: Solve for x
    x = 353,104,047,248,631.12/18,907,341.30
  6. Step 6: Final answer
    x = 18,675,499.73

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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.