Home / 478,797,611.55-660,740,405.40-258,781,037.55

Finding the Fourth Proportional to 478,797,611.55, 660,740,405.40 and 258,781,037.55

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Solution

The fourth proportional to 478,797,611.55, 660,740,405.40 and 258,781,037.55 is: 357,117,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797,611.55 : 660,740,405.40 = 258,781,037.55 : x
  2. Step 2: Convert to fraction form
    478,797,611.55/660,740,405.40 = 258,781,037.55/x
  3. Step 3: Cross multiply
    478,797,611.55x = 660,740,405.40 × 258,781,037.55
  4. Step 4: Simplify right side
    478,797,611.55x = 170,987,087,660,619,616
  5. Step 5: Solve for x
    x = 170,987,087,660,619,616/478,797,611.55
  6. Step 6: Final answer
    x = 357,117,670.46

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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.