Home / 286,291,567,987.90-429,437,351,981.85-126,945,520,862.20

Finding the Fourth Proportional to 286,291,567,987.90, 429,437,351,981.85 and 126,945,520,862.20

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Solution

The fourth proportional to 286,291,567,987.90, 429,437,351,981.85 and 126,945,520,862.20 is: 190,418,281,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,291,567,987.90 : 429,437,351,981.85 = 126,945,520,862.20 : x
  2. Step 2: Convert to fraction form
    286,291,567,987.90/429,437,351,981.85 = 126,945,520,862.20/x
  3. Step 3: Cross multiply
    286,291,567,987.90x = 429,437,351,981.85 × 126,945,520,862.20
  4. Step 4: Simplify right side
    286,291,567,987.90x = 54,515,148,325,019,860,336,640
  5. Step 5: Solve for x
    x = 54,515,148,325,019,860,336,640/286,291,567,987.90
  6. Step 6: Final answer
    x = 190,418,281,293.30

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1.5x scale

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.