Home / 1,286,774,372.66-1,929,280,393.53-655,284,048.75

Finding the Fourth Proportional to 1,286,774,372.66, 1,929,280,393.53 and 655,284,048.75

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Solution

The fourth proportional to 1,286,774,372.66, 1,929,280,393.53 and 655,284,048.75 is: 982,477,343.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,774,372.66 : 1,929,280,393.53 = 655,284,048.75 : x
  2. Step 2: Convert to fraction form
    1,286,774,372.66/1,929,280,393.53 = 655,284,048.75/x
  3. Step 3: Cross multiply
    1,286,774,372.66x = 1,929,280,393.53 × 655,284,048.75
  4. Step 4: Simplify right side
    1,286,774,372.66x = 1,264,226,667,446,331,648
  5. Step 5: Solve for x
    x = 1,264,226,667,446,331,648/1,286,774,372.66
  6. Step 6: Final answer
    x = 982,477,343.59

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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.