Home / 402,459,268.42-555,019,082.13-261,179,425.64

Finding the Fourth Proportional to 402,459,268.42, 555,019,082.13 and 261,179,425.64

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Solution

The fourth proportional to 402,459,268.42, 555,019,082.13 and 261,179,425.64 is: 360,184,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,459,268.42 : 555,019,082.13 = 261,179,425.64 : x
  2. Step 2: Convert to fraction form
    402,459,268.42/555,019,082.13 = 261,179,425.64/x
  3. Step 3: Cross multiply
    402,459,268.42x = 555,019,082.13 × 261,179,425.64
  4. Step 4: Simplify right side
    402,459,268.42x = 144,959,565,091,228,320
  5. Step 5: Solve for x
    x = 144,959,565,091,228,320/402,459,268.42
  6. Step 6: Final answer
    x = 360,184,437.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.