Home / 663,692,495.60-995,538,743.40-172,365,449.60

Finding the Fourth Proportional to 663,692,495.60, 995,538,743.40 and 172,365,449.60

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Solution

The fourth proportional to 663,692,495.60, 995,538,743.40 and 172,365,449.60 is: 258,548,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,692,495.60 : 995,538,743.40 = 172,365,449.60 : x
  2. Step 2: Convert to fraction form
    663,692,495.60/995,538,743.40 = 172,365,449.60/x
  3. Step 3: Cross multiply
    663,692,495.60x = 995,538,743.40 × 172,365,449.60
  4. Step 4: Simplify right side
    663,692,495.60x = 171,596,483,100,360,032
  5. Step 5: Solve for x
    x = 171,596,483,100,360,032/663,692,495.60
  6. Step 6: Final answer
    x = 258,548,174.40

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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.