Home / 625,590,904.80-938,386,357.20-165,575,575.20

Finding the Fourth Proportional to 625,590,904.80, 938,386,357.20 and 165,575,575.20

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Solution

The fourth proportional to 625,590,904.80, 938,386,357.20 and 165,575,575.20 is: 248,363,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,590,904.80 : 938,386,357.20 = 165,575,575.20 : x
  2. Step 2: Convert to fraction form
    625,590,904.80/938,386,357.20 = 165,575,575.20/x
  3. Step 3: Cross multiply
    625,590,904.80x = 938,386,357.20 × 165,575,575.20
  4. Step 4: Simplify right side
    625,590,904.80x = 155,373,860,853,222,656
  5. Step 5: Solve for x
    x = 155,373,860,853,222,656/625,590,904.80
  6. Step 6: Final answer
    x = 248,363,362.80

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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.