Home / 15,420,298,841.30-21,272,180,353.26-10,070,990,439.32

Finding the Fourth Proportional to 15,420,298,841.30, 21,272,180,353.26 and 10,070,990,439.32

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Solution

The fourth proportional to 15,420,298,841.30, 21,272,180,353.26 and 10,070,990,439.32 is: 13,892,851,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,298,841.30 : 21,272,180,353.26 = 10,070,990,439.32 : x
  2. Step 2: Convert to fraction form
    15,420,298,841.30/21,272,180,353.26 = 10,070,990,439.32/x
  3. Step 3: Cross multiply
    15,420,298,841.30x = 21,272,180,353.26 × 10,070,990,439.32
  4. Step 4: Simplify right side
    15,420,298,841.30x = 214,231,924,961,172,160,512
  5. Step 5: Solve for x
    x = 214,231,924,961,172,160,512/15,420,298,841.30
  6. Step 6: Final answer
    x = 13,892,851,699.31

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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.