Home / 72,774,905,629.80-109,162,358,444.70-20,430,092,893.80

Finding the Fourth Proportional to 72,774,905,629.80, 109,162,358,444.70 and 20,430,092,893.80

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Solution

The fourth proportional to 72,774,905,629.80, 109,162,358,444.70 and 20,430,092,893.80 is: 30,645,139,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,774,905,629.80 : 109,162,358,444.70 = 20,430,092,893.80 : x
  2. Step 2: Convert to fraction form
    72,774,905,629.80/109,162,358,444.70 = 20,430,092,893.80/x
  3. Step 3: Cross multiply
    72,774,905,629.80x = 109,162,358,444.70 × 20,430,092,893.80
  4. Step 4: Simplify right side
    72,774,905,629.80x = 2,230,197,123,531,513,790,464
  5. Step 5: Solve for x
    x = 2,230,197,123,531,513,790,464/72,774,905,629.80
  6. Step 6: Final answer
    x = 30,645,139,340.70

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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.