Home / 386,468,649.70-579,702,974.55-264,024,643.30

Finding the Fourth Proportional to 386,468,649.70, 579,702,974.55 and 264,024,643.30

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Solution

The fourth proportional to 386,468,649.70, 579,702,974.55 and 264,024,643.30 is: 396,036,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,468,649.70 : 579,702,974.55 = 264,024,643.30 : x
  2. Step 2: Convert to fraction form
    386,468,649.70/579,702,974.55 = 264,024,643.30/x
  3. Step 3: Cross multiply
    386,468,649.70x = 579,702,974.55 × 264,024,643.30
  4. Step 4: Simplify right side
    386,468,649.70x = 153,055,871,075,512,736
  5. Step 5: Solve for x
    x = 153,055,871,075,512,736/386,468,649.70
  6. Step 6: Final answer
    x = 396,036,964.95

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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.