Home / 388,640,014.84-583,062,121.68-139,670,409.52

Finding the Fourth Proportional to 388,640,014.84, 583,062,121.68 and 139,670,409.52

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Solution

The fourth proportional to 388,640,014.84, 583,062,121.68 and 139,670,409.52 is: 209,542,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,640,014.84 : 583,062,121.68 = 139,670,409.52 : x
  2. Step 2: Convert to fraction form
    388,640,014.84/583,062,121.68 = 139,670,409.52/x
  3. Step 3: Cross multiply
    388,640,014.84x = 583,062,121.68 × 139,670,409.52
  4. Step 4: Simplify right side
    388,640,014.84x = 81,436,525,310,645,664
  5. Step 5: Solve for x
    x = 81,436,525,310,645,664/388,640,014.84
  6. Step 6: Final answer
    x = 209,542,307.02

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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.