Home / 387,077,999.60-580,616,999.40-291,526,511.60

Finding the Fourth Proportional to 387,077,999.60, 580,616,999.40 and 291,526,511.60

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Solution

The fourth proportional to 387,077,999.60, 580,616,999.40 and 291,526,511.60 is: 437,289,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,077,999.60 : 580,616,999.40 = 291,526,511.60 : x
  2. Step 2: Convert to fraction form
    387,077,999.60/580,616,999.40 = 291,526,511.60/x
  3. Step 3: Cross multiply
    387,077,999.60x = 580,616,999.40 × 291,526,511.60
  4. Step 4: Simplify right side
    387,077,999.60x = 169,265,248,410,741,312
  5. Step 5: Solve for x
    x = 169,265,248,410,741,312/387,077,999.60
  6. Step 6: Final answer
    x = 437,289,767.40

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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.