Home / 20,736,095.60-31,104,143.40-11,778,143.60

Finding the Fourth Proportional to 20,736,095.60, 31,104,143.40 and 11,778,143.60

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Solution

The fourth proportional to 20,736,095.60, 31,104,143.40 and 11,778,143.60 is: 17,667,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,095.60 : 31,104,143.40 = 11,778,143.60 : x
  2. Step 2: Convert to fraction form
    20,736,095.60/31,104,143.40 = 11,778,143.60/x
  3. Step 3: Cross multiply
    20,736,095.60x = 31,104,143.40 × 11,778,143.60
  4. Step 4: Simplify right side
    20,736,095.60x = 366,349,067,520,192.19
  5. Step 5: Solve for x
    x = 366,349,067,520,192.19/20,736,095.60
  6. Step 6: Final answer
    x = 17,667,215.40

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1.5x scale

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.