Home / 21,509,939.60-32,264,909.40-19,158,477.20

Finding the Fourth Proportional to 21,509,939.60, 32,264,909.40 and 19,158,477.20

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Solution

The fourth proportional to 21,509,939.60, 32,264,909.40 and 19,158,477.20 is: 28,737,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509,939.60 : 32,264,909.40 = 19,158,477.20 : x
  2. Step 2: Convert to fraction form
    21,509,939.60/32,264,909.40 = 19,158,477.20/x
  3. Step 3: Cross multiply
    21,509,939.60x = 32,264,909.40 × 19,158,477.20
  4. Step 4: Simplify right side
    21,509,939.60x = 618,146,531,099,965.62
  5. Step 5: Solve for x
    x = 618,146,531,099,965.62/21,509,939.60
  6. Step 6: Final answer
    x = 28,737,715.80

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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.