Home / 28,291,762.30-42,403,345.80-20,081,490.92

Finding the Fourth Proportional to 28,291,762.30, 42,403,345.80 and 20,081,490.92

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Solution

The fourth proportional to 28,291,762.30, 42,403,345.80 and 20,081,490.92 is: 30,097,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291,762.30 : 42,403,345.80 = 20,081,490.92 : x
  2. Step 2: Convert to fraction form
    28,291,762.30/42,403,345.80 = 20,081,490.92/x
  3. Step 3: Cross multiply
    28,291,762.30x = 42,403,345.80 × 20,081,490.92
  4. Step 4: Simplify right side
    28,291,762.30x = 851,522,403,660,320.12
  5. Step 5: Solve for x
    x = 851,522,403,660,320.12/28,291,762.30
  6. Step 6: Final answer
    x = 30,097,891.91

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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.