Home / 28,361,047.20-42,541,570.80-8,168,330.40

Finding the Fourth Proportional to 28,361,047.20, 42,541,570.80 and 8,168,330.40

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Solution

The fourth proportional to 28,361,047.20, 42,541,570.80 and 8,168,330.40 is: 12,252,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361,047.20 : 42,541,570.80 = 8,168,330.40 : x
  2. Step 2: Convert to fraction form
    28,361,047.20/42,541,570.80 = 8,168,330.40/x
  3. Step 3: Cross multiply
    28,361,047.20x = 42,541,570.80 × 8,168,330.40
  4. Step 4: Simplify right side
    28,361,047.20x = 347,493,606,029,392.31
  5. Step 5: Solve for x
    x = 347,493,606,029,392.31/28,361,047.20
  6. Step 6: Final answer
    x = 12,252,495.60

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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.