Home / 21,509,901.60-32,264,852.40-19,158,439.20

Finding the Fourth Proportional to 21,509,901.60, 32,264,852.40 and 19,158,439.20

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Solution

The fourth proportional to 21,509,901.60, 32,264,852.40 and 19,158,439.20 is: 28,737,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509,901.60 : 32,264,852.40 = 19,158,439.20 : x
  2. Step 2: Convert to fraction form
    21,509,901.60/32,264,852.40 = 19,158,439.20/x
  3. Step 3: Cross multiply
    21,509,901.60x = 32,264,852.40 × 19,158,439.20
  4. Step 4: Simplify right side
    21,509,901.60x = 618,144,213,002,374
  5. Step 5: Solve for x
    x = 618,144,213,002,374/21,509,901.60
  6. Step 6: Final answer
    x = 28,737,658.80

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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.