Home / 778,189,985.55-1,073,900,921.81-425,767,396.59

Finding the Fourth Proportional to 778,189,985.55, 1,073,900,921.81 and 425,767,396.59

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Solution

The fourth proportional to 778,189,985.55, 1,073,900,921.81 and 425,767,396.59 is: 587,558,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,189,985.55 : 1,073,900,921.81 = 425,767,396.59 : x
  2. Step 2: Convert to fraction form
    778,189,985.55/1,073,900,921.81 = 425,767,396.59/x
  3. Step 3: Cross multiply
    778,189,985.55x = 1,073,900,921.81 × 425,767,396.59
  4. Step 4: Simplify right side
    778,189,985.55x = 457,231,999,672,516,032
  5. Step 5: Solve for x
    x = 457,231,999,672,516,032/778,189,985.55
  6. Step 6: Final answer
    x = 587,558,318.87

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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.