Home / 779,180,787.70-1,075,270,524.22-421,949,180.82

Finding the Fourth Proportional to 779,180,787.70, 1,075,270,524.22 and 421,949,180.82

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Solution

The fourth proportional to 779,180,787.70, 1,075,270,524.22 and 421,949,180.82 is: 582,290,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,180,787.70 : 1,075,270,524.22 = 421,949,180.82 : x
  2. Step 2: Convert to fraction form
    779,180,787.70/1,075,270,524.22 = 421,949,180.82/x
  3. Step 3: Cross multiply
    779,180,787.70x = 1,075,270,524.22 × 421,949,180.82
  4. Step 4: Simplify right side
    779,180,787.70x = 453,709,516,854,520,960
  5. Step 5: Solve for x
    x = 453,709,516,854,520,960/779,180,787.70
  6. Step 6: Final answer
    x = 582,290,431.20

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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.