Home / 1,388,111,851.30-2,082,094,444.28-455,311,827.37

Finding the Fourth Proportional to 1,388,111,851.30, 2,082,094,444.28 and 455,311,827.37

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Solution

The fourth proportional to 1,388,111,851.30, 2,082,094,444.28 and 455,311,827.37 is: 682,943,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,111,851.30 : 2,082,094,444.28 = 455,311,827.37 : x
  2. Step 2: Convert to fraction form
    1,388,111,851.30/2,082,094,444.28 = 455,311,827.37/x
  3. Step 3: Cross multiply
    1,388,111,851.30x = 2,082,094,444.28 × 455,311,827.37
  4. Step 4: Simplify right side
    1,388,111,851.30x = 948,002,226,185,858,688
  5. Step 5: Solve for x
    x = 948,002,226,185,858,688/1,388,111,851.30
  6. Step 6: Final answer
    x = 682,943,687.35

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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.