Home / 1,286,518,575,108.40-1,929,326,840,623.60-379,714,430,143.60

Finding the Fourth Proportional to 1,286,518,575,108.40, 1,929,326,840,623.60 and 379,714,430,143.60

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Solution

The fourth proportional to 1,286,518,575,108.40, 1,929,326,840,623.60 and 379,714,430,143.60 is: 569,438,526,596.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,518,575,108.40 : 1,929,326,840,623.60 = 379,714,430,143.60 : x
  2. Step 2: Convert to fraction form
    1,286,518,575,108.40/1,929,326,840,623.60 = 379,714,430,143.60/x
  3. Step 3: Cross multiply
    1,286,518,575,108.40x = 1,929,326,840,623.60 × 379,714,430,143.60
  4. Step 4: Simplify right side
    1,286,518,575,108.40x = 732,593,241,848,142,509,375,488
  5. Step 5: Solve for x
    x = 732,593,241,848,142,509,375,488/1,286,518,575,108.40
  6. Step 6: Final answer
    x = 569,438,526,596.02

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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.