Home / 5,128,061.95-7,688,675.99-2,823,640.21

Finding the Fourth Proportional to 5,128,061.95, 7,688,675.99 and 2,823,640.21

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Solution

The fourth proportional to 5,128,061.95, 7,688,675.99 and 2,823,640.21 is: 4,233,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,061.95 : 7,688,675.99 = 2,823,640.21 : x
  2. Step 2: Convert to fraction form
    5,128,061.95/7,688,675.99 = 2,823,640.21/x
  3. Step 3: Cross multiply
    5,128,061.95x = 7,688,675.99 × 2,823,640.21
  4. Step 4: Simplify right side
    5,128,061.95x = 21,710,054,672,907.36
  5. Step 5: Solve for x
    x = 21,710,054,672,907.36/5,128,061.95
  6. Step 6: Final answer
    x = 4,233,578.86

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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.