Home / 20,830,288.60-28,746,095.02-12,009,565.38

Finding the Fourth Proportional to 20,830,288.60, 28,746,095.02 and 12,009,565.38

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Solution

The fourth proportional to 20,830,288.60, 28,746,095.02 and 12,009,565.38 is: 16,573,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,288.60 : 28,746,095.02 = 12,009,565.38 : x
  2. Step 2: Convert to fraction form
    20,830,288.60/28,746,095.02 = 12,009,565.38/x
  3. Step 3: Cross multiply
    20,830,288.60x = 28,746,095.02 × 12,009,565.38
  4. Step 4: Simplify right side
    20,830,288.60x = 345,228,107,562,382.44
  5. Step 5: Solve for x
    x = 345,228,107,562,382.44/20,830,288.60
  6. Step 6: Final answer
    x = 16,573,371.31

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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.