Home / 386,166,418.60-579,249,627.90-263,722,412.20

Finding the Fourth Proportional to 386,166,418.60, 579,249,627.90 and 263,722,412.20

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Solution

The fourth proportional to 386,166,418.60, 579,249,627.90 and 263,722,412.20 is: 395,583,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,166,418.60 : 579,249,627.90 = 263,722,412.20 : x
  2. Step 2: Convert to fraction form
    386,166,418.60/579,249,627.90 = 263,722,412.20/x
  3. Step 3: Cross multiply
    386,166,418.60x = 579,249,627.90 × 263,722,412.20
  4. Step 4: Simplify right side
    386,166,418.60x = 152,761,109,135,740,416
  5. Step 5: Solve for x
    x = 152,761,109,135,740,416/386,166,418.60
  6. Step 6: Final answer
    x = 395,583,618.30

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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.