Home / 21,271,210.99-31,914,857.81-8,326,612.91

Finding the Fourth Proportional to 21,271,210.99, 31,914,857.81 and 8,326,612.91

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Solution

The fourth proportional to 21,271,210.99, 31,914,857.81 and 8,326,612.91 is: 12,493,067.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271,210.99 : 31,914,857.81 = 8,326,612.91 : x
  2. Step 2: Convert to fraction form
    21,271,210.99/31,914,857.81 = 8,326,612.91/x
  3. Step 3: Cross multiply
    21,271,210.99x = 31,914,857.81 × 8,326,612.91
  4. Step 4: Simplify right side
    21,271,210.99x = 265,742,666,860,352.97
  5. Step 5: Solve for x
    x = 265,742,666,860,352.97/21,271,210.99
  6. Step 6: Final answer
    x = 12,493,067.13

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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.