Home / 817,890,611.40-1,226,804,424.30-272,632,145.40

Finding the Fourth Proportional to 817,890,611.40, 1,226,804,424.30 and 272,632,145.40

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Solution

The fourth proportional to 817,890,611.40, 1,226,804,424.30 and 272,632,145.40 is: 408,937,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,890,611.40 : 1,226,804,424.30 = 272,632,145.40 : x
  2. Step 2: Convert to fraction form
    817,890,611.40/1,226,804,424.30 = 272,632,145.40/x
  3. Step 3: Cross multiply
    817,890,611.40x = 1,226,804,424.30 × 272,632,145.40
  4. Step 4: Simplify right side
    817,890,611.40x = 334,466,322,183,120,832
  5. Step 5: Solve for x
    x = 334,466,322,183,120,832/817,890,611.40
  6. Step 6: Final answer
    x = 408,937,720.43

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1.5x scale

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.