Home / 15,420,298,815.46-21,272,180,317.72-10,070,990,413.57

Finding the Fourth Proportional to 15,420,298,815.46, 21,272,180,317.72 and 10,070,990,413.57

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Solution

The fourth proportional to 15,420,298,815.46, 21,272,180,317.72 and 10,070,990,413.57 is: 13,892,851,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,298,815.46 : 21,272,180,317.72 = 10,070,990,413.57 : x
  2. Step 2: Convert to fraction form
    15,420,298,815.46/21,272,180,317.72 = 10,070,990,413.57/x
  3. Step 3: Cross multiply
    15,420,298,815.46x = 21,272,180,317.72 × 10,070,990,413.57
  4. Step 4: Simplify right side
    15,420,298,815.46x = 214,231,924,055,490,560,000
  5. Step 5: Solve for x
    x = 214,231,924,055,490,560,000/15,420,298,815.46
  6. Step 6: Final answer
    x = 13,892,851,663.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.