Home / 13,122,543.60-19,683,815.40-11,687,652.90

Finding the Fourth Proportional to 13,122,543.60, 19,683,815.40 and 11,687,652.90

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Solution

The fourth proportional to 13,122,543.60, 19,683,815.40 and 11,687,652.90 is: 17,531,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,543.60 : 19,683,815.40 = 11,687,652.90 : x
  2. Step 2: Convert to fraction form
    13,122,543.60/19,683,815.40 = 11,687,652.90/x
  3. Step 3: Cross multiply
    13,122,543.60x = 19,683,815.40 × 11,687,652.90
  4. Step 4: Simplify right side
    13,122,543.60x = 230,057,602,142,874.66
  5. Step 5: Solve for x
    x = 230,057,602,142,874.66/13,122,543.60
  6. Step 6: Final answer
    x = 17,531,479.35

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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.