Home / 821,804,280.32-1,232,689,149.90-200,022,981.16

Finding the Fourth Proportional to 821,804,280.32, 1,232,689,149.90 and 200,022,981.16

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Solution

The fourth proportional to 821,804,280.32, 1,232,689,149.90 and 200,022,981.16 is: 300,030,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,804,280.32 : 1,232,689,149.90 = 200,022,981.16 : x
  2. Step 2: Convert to fraction form
    821,804,280.32/1,232,689,149.90 = 200,022,981.16/x
  3. Step 3: Cross multiply
    821,804,280.32x = 1,232,689,149.90 × 200,022,981.16
  4. Step 4: Simplify right side
    821,804,280.32x = 246,566,158,606,584,128
  5. Step 5: Solve for x
    x = 246,566,158,606,584,128/821,804,280.32
  6. Step 6: Final answer
    x = 300,030,268.17

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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.