Home / 1,286,518,575,109.40-1,929,326,840,625.10-379,714,430,144.60

Finding the Fourth Proportional to 1,286,518,575,109.40, 1,929,326,840,625.10 and 379,714,430,144.60

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Solution

The fourth proportional to 1,286,518,575,109.40, 1,929,326,840,625.10 and 379,714,430,144.60 is: 569,438,526,597.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,518,575,109.40 : 1,929,326,840,625.10 = 379,714,430,144.60 : x
  2. Step 2: Convert to fraction form
    1,286,518,575,109.40/1,929,326,840,625.10 = 379,714,430,144.60/x
  3. Step 3: Cross multiply
    1,286,518,575,109.40x = 1,929,326,840,625.10 × 379,714,430,144.60
  4. Step 4: Simplify right side
    1,286,518,575,109.40x = 732,593,241,850,641,375,035,392
  5. Step 5: Solve for x
    x = 732,593,241,850,641,375,035,392/1,286,518,575,109.40
  6. Step 6: Final answer
    x = 569,438,526,597.52

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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.