Home / 21,200,368.47-31,737,776.22-13,087,257.32

Finding the Fourth Proportional to 21,200,368.47, 31,737,776.22 and 13,087,257.32

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Solution

The fourth proportional to 21,200,368.47, 31,737,776.22 and 13,087,257.32 is: 19,592,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200,368.47 : 31,737,776.22 = 13,087,257.32 : x
  2. Step 2: Convert to fraction form
    21,200,368.47/31,737,776.22 = 13,087,257.32/x
  3. Step 3: Cross multiply
    21,200,368.47x = 31,737,776.22 × 13,087,257.32
  4. Step 4: Simplify right side
    21,200,368.47x = 415,360,443,997,028
  5. Step 5: Solve for x
    x = 415,360,443,997,028/21,200,368.47
  6. Step 6: Final answer
    x = 19,592,133.25

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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.