Home / 21,248,081.60-31,872,122.40-6,872,602.55

Finding the Fourth Proportional to 21,248,081.60, 31,872,122.40 and 6,872,602.55

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Solution

The fourth proportional to 21,248,081.60, 31,872,122.40 and 6,872,602.55 is: 10,308,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,081.60 : 31,872,122.40 = 6,872,602.55 : x
  2. Step 2: Convert to fraction form
    21,248,081.60/31,872,122.40 = 6,872,602.55/x
  3. Step 3: Cross multiply
    21,248,081.60x = 31,872,122.40 × 6,872,602.55
  4. Step 4: Simplify right side
    21,248,081.60x = 219,044,429,680,152.09
  5. Step 5: Solve for x
    x = 219,044,429,680,152.09/21,248,081.60
  6. Step 6: Final answer
    x = 10,308,903.83

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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.