Home / 21,030,600.60-31,545,900.90-11,929,181.40

Finding the Fourth Proportional to 21,030,600.60, 31,545,900.90 and 11,929,181.40

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Solution

The fourth proportional to 21,030,600.60, 31,545,900.90 and 11,929,181.40 is: 17,893,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,600.60 : 31,545,900.90 = 11,929,181.40 : x
  2. Step 2: Convert to fraction form
    21,030,600.60/31,545,900.90 = 11,929,181.40/x
  3. Step 3: Cross multiply
    21,030,600.60x = 31,545,900.90 × 11,929,181.40
  4. Step 4: Simplify right side
    21,030,600.60x = 376,316,774,262,523.25
  5. Step 5: Solve for x
    x = 376,316,774,262,523.25/21,030,600.60
  6. Step 6: Final answer
    x = 17,893,772.10

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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.