Home / 515,564,594.64-711,539,724.24-289,540,723.82

Finding the Fourth Proportional to 515,564,594.64, 711,539,724.24 and 289,540,723.82

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Solution

The fourth proportional to 515,564,594.64, 711,539,724.24 and 289,540,723.82 is: 399,600,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,564,594.64 : 711,539,724.24 = 289,540,723.82 : x
  2. Step 2: Convert to fraction form
    515,564,594.64/711,539,724.24 = 289,540,723.82/x
  3. Step 3: Cross multiply
    515,564,594.64x = 711,539,724.24 × 289,540,723.82
  4. Step 4: Simplify right side
    515,564,594.64x = 206,019,726,779,575,104
  5. Step 5: Solve for x
    x = 206,019,726,779,575,104/515,564,594.64
  6. Step 6: Final answer
    x = 399,600,222.59

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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.