Home / 21,399,693,312.80-32,099,539,969.20-7,420,669,248.80

Finding the Fourth Proportional to 21,399,693,312.80, 32,099,539,969.20 and 7,420,669,248.80

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Solution

The fourth proportional to 21,399,693,312.80, 32,099,539,969.20 and 7,420,669,248.80 is: 11,131,003,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399,693,312.80 : 32,099,539,969.20 = 7,420,669,248.80 : x
  2. Step 2: Convert to fraction form
    21,399,693,312.80/32,099,539,969.20 = 7,420,669,248.80/x
  3. Step 3: Cross multiply
    21,399,693,312.80x = 32,099,539,969.20 × 7,420,669,248.80
  4. Step 4: Simplify right side
    21,399,693,312.80x = 238,200,069,150,068,965,376
  5. Step 5: Solve for x
    x = 238,200,069,150,068,965,376/21,399,693,312.80
  6. Step 6: Final answer
    x = 11,131,003,873.20

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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.