Home / 712,723,919.14-1,069,087,871.72-221,509,017.04

Finding the Fourth Proportional to 712,723,919.14, 1,069,087,871.72 and 221,509,017.04

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Solution

The fourth proportional to 712,723,919.14, 1,069,087,871.72 and 221,509,017.04 is: 332,264,144.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,723,919.14 : 1,069,087,871.72 = 221,509,017.04 : x
  2. Step 2: Convert to fraction form
    712,723,919.14/1,069,087,871.72 = 221,509,017.04/x
  3. Step 3: Cross multiply
    712,723,919.14x = 1,069,087,871.72 × 221,509,017.04
  4. Step 4: Simplify right side
    712,723,919.14x = 236,812,603,594,082,816
  5. Step 5: Solve for x
    x = 236,812,603,594,082,816/712,723,919.14
  6. Step 6: Final answer
    x = 332,264,144.97

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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.