Home / 21,291,210.30-31,936,815.45-11,701,652.70

Finding the Fourth Proportional to 21,291,210.30, 31,936,815.45 and 11,701,652.70

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Solution

The fourth proportional to 21,291,210.30, 31,936,815.45 and 11,701,652.70 is: 17,552,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,210.30 : 31,936,815.45 = 11,701,652.70 : x
  2. Step 2: Convert to fraction form
    21,291,210.30/31,936,815.45 = 11,701,652.70/x
  3. Step 3: Cross multiply
    21,291,210.30x = 31,936,815.45 × 11,701,652.70
  4. Step 4: Simplify right side
    21,291,210.30x = 373,713,522,739,894.19
  5. Step 5: Solve for x
    x = 373,713,522,739,894.19/21,291,210.30
  6. Step 6: Final answer
    x = 17,552,479.05

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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.