Home / 212,990,613.60-319,485,920.40-190,032,362.40

Finding the Fourth Proportional to 212,990,613.60, 319,485,920.40 and 190,032,362.40

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Solution

The fourth proportional to 212,990,613.60, 319,485,920.40 and 190,032,362.40 is: 285,048,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,990,613.60 : 319,485,920.40 = 190,032,362.40 : x
  2. Step 2: Convert to fraction form
    212,990,613.60/319,485,920.40 = 190,032,362.40/x
  3. Step 3: Cross multiply
    212,990,613.60x = 319,485,920.40 × 190,032,362.40
  4. Step 4: Simplify right side
    212,990,613.60x = 60,712,664,207,150,352
  5. Step 5: Solve for x
    x = 60,712,664,207,150,352/212,990,613.60
  6. Step 6: Final answer
    x = 285,048,543.60

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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.