Home / 21,104,865.60-31,657,298.40-19,929,134.40

Finding the Fourth Proportional to 21,104,865.60, 31,657,298.40 and 19,929,134.40

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Solution

The fourth proportional to 21,104,865.60, 31,657,298.40 and 19,929,134.40 is: 29,893,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104,865.60 : 31,657,298.40 = 19,929,134.40 : x
  2. Step 2: Convert to fraction form
    21,104,865.60/31,657,298.40 = 19,929,134.40/x
  3. Step 3: Cross multiply
    21,104,865.60x = 31,657,298.40 × 19,929,134.40
  4. Step 4: Simplify right side
    21,104,865.60x = 630,902,554,554,504.88
  5. Step 5: Solve for x
    x = 630,902,554,554,504.88/21,104,865.60
  6. Step 6: Final answer
    x = 29,893,701.60

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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.