Home / 15,386,916.54-21,228,787.86-8,860,405.56

Finding the Fourth Proportional to 15,386,916.54, 21,228,787.86 and 8,860,405.56

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Solution

The fourth proportional to 15,386,916.54, 21,228,787.86 and 8,860,405.56 is: 12,224,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386,916.54 : 21,228,787.86 = 8,860,405.56 : x
  2. Step 2: Convert to fraction form
    15,386,916.54/21,228,787.86 = 8,860,405.56/x
  3. Step 3: Cross multiply
    15,386,916.54x = 21,228,787.86 × 8,860,405.56
  4. Step 4: Simplify right side
    15,386,916.54x = 188,095,669,986,804.50
  5. Step 5: Solve for x
    x = 188,095,669,986,804.50/15,386,916.54
  6. Step 6: Final answer
    x = 12,224,390.08

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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.