Home / 7,142,803.76-9,857,140.80-3,879,682.04

Finding the Fourth Proportional to 7,142,803.76, 9,857,140.80 and 3,879,682.04

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Solution

The fourth proportional to 7,142,803.76, 9,857,140.80 and 3,879,682.04 is: 5,354,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,803.76 : 9,857,140.80 = 3,879,682.04 : x
  2. Step 2: Convert to fraction form
    7,142,803.76/9,857,140.80 = 3,879,682.04/x
  3. Step 3: Cross multiply
    7,142,803.76x = 9,857,140.80 × 3,879,682.04
  4. Step 4: Simplify right side
    7,142,803.76x = 38,242,572,127,511.23
  5. Step 5: Solve for x
    x = 38,242,572,127,511.23/7,142,803.76
  6. Step 6: Final answer
    x = 5,354,000.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.