Home / 378,258,762.72-568,194,619.84-356,143,510.16

Finding the Fourth Proportional to 378,258,762.72, 568,194,619.84 and 356,143,510.16

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Solution

The fourth proportional to 378,258,762.72, 568,194,619.84 and 356,143,510.16 is: 534,974,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,258,762.72 : 568,194,619.84 = 356,143,510.16 : x
  2. Step 2: Convert to fraction form
    378,258,762.72/568,194,619.84 = 356,143,510.16/x
  3. Step 3: Cross multiply
    378,258,762.72x = 568,194,619.84 × 356,143,510.16
  4. Step 4: Simplify right side
    378,258,762.72x = 202,358,826,363,844,416
  5. Step 5: Solve for x
    x = 202,358,826,363,844,416/378,258,762.72
  6. Step 6: Final answer
    x = 534,974,589.64

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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.