Home / 680,743,232.76-939,450,718.98-379,355,627.76

Finding the Fourth Proportional to 680,743,232.76, 939,450,718.98 and 379,355,627.76

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Solution

The fourth proportional to 680,743,232.76, 939,450,718.98 and 379,355,627.76 is: 523,524,730.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,743,232.76 : 939,450,718.98 = 379,355,627.76 : x
  2. Step 2: Convert to fraction form
    680,743,232.76/939,450,718.98 = 379,355,627.76/x
  3. Step 3: Cross multiply
    680,743,232.76x = 939,450,718.98 × 379,355,627.76
  4. Step 4: Simplify right side
    680,743,232.76x = 356,385,917,248,241,216
  5. Step 5: Solve for x
    x = 356,385,917,248,241,216/680,743,232.76
  6. Step 6: Final answer
    x = 523,524,730.17

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1.5x scale

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.