Home / 20,956,871.60-31,435,307.40-19,964,848.40

Finding the Fourth Proportional to 20,956,871.60, 31,435,307.40 and 19,964,848.40

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Solution

The fourth proportional to 20,956,871.60, 31,435,307.40 and 19,964,848.40 is: 29,947,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,871.60 : 31,435,307.40 = 19,964,848.40 : x
  2. Step 2: Convert to fraction form
    20,956,871.60/31,435,307.40 = 19,964,848.40/x
  3. Step 3: Cross multiply
    20,956,871.60x = 31,435,307.40 × 19,964,848.40
  4. Step 4: Simplify right side
    20,956,871.60x = 627,601,146,648,398.12
  5. Step 5: Solve for x
    x = 627,601,146,648,398.12/20,956,871.60
  6. Step 6: Final answer
    x = 29,947,272.60

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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.