Home / 20,903,960,080.32-28,828,087,728.48-15,256,230,129.60

Finding the Fourth Proportional to 20,903,960,080.32, 28,828,087,728.48 and 15,256,230,129.60

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Solution

The fourth proportional to 20,903,960,080.32, 28,828,087,728.48 and 15,256,230,129.60 is: 21,039,455,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,960,080.32 : 28,828,087,728.48 = 15,256,230,129.60 : x
  2. Step 2: Convert to fraction form
    20,903,960,080.32/28,828,087,728.48 = 15,256,230,129.60/x
  3. Step 3: Cross multiply
    20,903,960,080.32x = 28,828,087,728.48 × 15,256,230,129.60
  4. Step 4: Simplify right side
    20,903,960,080.32x = 439,807,940,581,988,630,528
  5. Step 5: Solve for x
    x = 439,807,940,581,988,630,528/20,903,960,080.32
  6. Step 6: Final answer
    x = 21,039,455,629.08

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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.