Home / 21,116,302.02-31,686,435-11,400,785.46

Finding the Fourth Proportional to 21,116,302.02, 31,686,435 and 11,400,785.46

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Solution

The fourth proportional to 21,116,302.02, 31,686,435 and 11,400,785.46 is: 17,107,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,302.02 : 31,686,435 = 11,400,785.46 : x
  2. Step 2: Convert to fraction form
    21,116,302.02/31,686,435 = 11,400,785.46/x
  3. Step 3: Cross multiply
    21,116,302.02x = 31,686,435 × 11,400,785.46
  4. Step 4: Simplify right side
    21,116,302.02x = 361,250,247,427,235.12
  5. Step 5: Solve for x
    x = 361,250,247,427,235.12/21,116,302.02
  6. Step 6: Final answer
    x = 17,107,647.31

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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.