Home / 28,425,787.65-42,638,688.77-7,958,522.57

Finding the Fourth Proportional to 28,425,787.65, 42,638,688.77 and 7,958,522.57

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Solution

The fourth proportional to 28,425,787.65, 42,638,688.77 and 7,958,522.57 is: 11,937,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425,787.65 : 42,638,688.77 = 7,958,522.57 : x
  2. Step 2: Convert to fraction form
    28,425,787.65/42,638,688.77 = 7,958,522.57/x
  3. Step 3: Cross multiply
    28,425,787.65x = 42,638,688.77 × 7,958,522.57
  4. Step 4: Simplify right side
    28,425,787.65x = 339,340,966,678,264.50
  5. Step 5: Solve for x
    x = 339,340,966,678,264.50/28,425,787.65
  6. Step 6: Final answer
    x = 11,937,785.89

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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.