Home / 779,180,939.98-1,075,270,733.88-421,949,332.42

Finding the Fourth Proportional to 779,180,939.98, 1,075,270,733.88 and 421,949,332.42

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Solution

The fourth proportional to 779,180,939.98, 1,075,270,733.88 and 421,949,332.42 is: 582,290,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,180,939.98 : 1,075,270,733.88 = 421,949,332.42 : x
  2. Step 2: Convert to fraction form
    779,180,939.98/1,075,270,733.88 = 421,949,332.42/x
  3. Step 3: Cross multiply
    779,180,939.98x = 1,075,270,733.88 × 421,949,332.42
  4. Step 4: Simplify right side
    779,180,939.98x = 453,709,768,331,429,568
  5. Step 5: Solve for x
    x = 453,709,768,331,429,568/779,180,939.98
  6. Step 6: Final answer
    x = 582,290,640.15

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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.