Home / 427,883,139.60-641,824,709.40-104,767,011.60

Finding the Fourth Proportional to 427,883,139.60, 641,824,709.40 and 104,767,011.60

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Solution

The fourth proportional to 427,883,139.60, 641,824,709.40 and 104,767,011.60 is: 157,150,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,883,139.60 : 641,824,709.40 = 104,767,011.60 : x
  2. Step 2: Convert to fraction form
    427,883,139.60/641,824,709.40 = 104,767,011.60/x
  3. Step 3: Cross multiply
    427,883,139.60x = 641,824,709.40 × 104,767,011.60
  4. Step 4: Simplify right side
    427,883,139.60x = 67,242,056,774,876,424
  5. Step 5: Solve for x
    x = 67,242,056,774,876,424/427,883,139.60
  6. Step 6: Final answer
    x = 157,150,517.40

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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.