Home / 28,878,510.84-39,852,380-15,647,677.32

Finding the Fourth Proportional to 28,878,510.84, 39,852,380 and 15,647,677.32

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Solution

The fourth proportional to 28,878,510.84, 39,852,380 and 15,647,677.32 is: 21,593,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878,510.84 : 39,852,380 = 15,647,677.32 : x
  2. Step 2: Convert to fraction form
    28,878,510.84/39,852,380 = 15,647,677.32/x
  3. Step 3: Cross multiply
    28,878,510.84x = 39,852,380 × 15,647,677.32
  4. Step 4: Simplify right side
    28,878,510.84x = 623,597,182,674,021.62
  5. Step 5: Solve for x
    x = 623,597,182,674,021.62/28,878,510.84
  6. Step 6: Final answer
    x = 21,593,813.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.