Home / 21,438,402,958.74-32,150,781,928.63-7,077,437,480.32

Finding the Fourth Proportional to 21,438,402,958.74, 32,150,781,928.63 and 7,077,437,480.32

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Solution

The fourth proportional to 21,438,402,958.74, 32,150,781,928.63 and 7,077,437,480.32 is: 10,613,903,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,402,958.74 : 32,150,781,928.63 = 7,077,437,480.32 : x
  2. Step 2: Convert to fraction form
    21,438,402,958.74/32,150,781,928.63 = 7,077,437,480.32/x
  3. Step 3: Cross multiply
    21,438,402,958.74x = 32,150,781,928.63 × 7,077,437,480.32
  4. Step 4: Simplify right side
    21,438,402,958.74x = 227,545,149,043,280,904,192
  5. Step 5: Solve for x
    x = 227,545,149,043,280,904,192/21,438,402,958.74
  6. Step 6: Final answer
    x = 10,613,903,912.58

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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.