Home / 21,342,435.20-32,013,652.80-19,578,838.40

Finding the Fourth Proportional to 21,342,435.20, 32,013,652.80 and 19,578,838.40

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Solution

The fourth proportional to 21,342,435.20, 32,013,652.80 and 19,578,838.40 is: 29,368,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342,435.20 : 32,013,652.80 = 19,578,838.40 : x
  2. Step 2: Convert to fraction form
    21,342,435.20/32,013,652.80 = 19,578,838.40/x
  3. Step 3: Cross multiply
    21,342,435.20x = 32,013,652.80 × 19,578,838.40
  4. Step 4: Simplify right side
    21,342,435.20x = 626,790,134,764,907.50
  5. Step 5: Solve for x
    x = 626,790,134,764,907.50/21,342,435.20
  6. Step 6: Final answer
    x = 29,368,257.60

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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.