Home / 255,367,459.40-382,740,949.92-138,505,700.92

Finding the Fourth Proportional to 255,367,459.40, 382,740,949.92 and 138,505,700.92

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Solution

The fourth proportional to 255,367,459.40, 382,740,949.92 and 138,505,700.92 is: 207,590,284.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,367,459.40 : 382,740,949.92 = 138,505,700.92 : x
  2. Step 2: Convert to fraction form
    255,367,459.40/382,740,949.92 = 138,505,700.92/x
  3. Step 3: Cross multiply
    255,367,459.40x = 382,740,949.92 × 138,505,700.92
  4. Step 4: Simplify right side
    255,367,459.40x = 53,011,803,539,456,216
  5. Step 5: Solve for x
    x = 53,011,803,539,456,216/255,367,459.40
  6. Step 6: Final answer
    x = 207,590,284.46

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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.