Home / 257,599,487.22-386,196,007.50-128,136,435.54

Finding the Fourth Proportional to 257,599,487.22, 386,196,007.50 and 128,136,435.54

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Solution

The fourth proportional to 257,599,487.22, 386,196,007.50 and 128,136,435.54 is: 192,103,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,599,487.22 : 386,196,007.50 = 128,136,435.54 : x
  2. Step 2: Convert to fraction form
    257,599,487.22/386,196,007.50 = 128,136,435.54/x
  3. Step 3: Cross multiply
    257,599,487.22x = 386,196,007.50 × 128,136,435.54
  4. Step 4: Simplify right side
    257,599,487.22x = 49,485,779,820,829,112
  5. Step 5: Solve for x
    x = 49,485,779,820,829,112/257,599,487.22
  6. Step 6: Final answer
    x = 192,103,564.94

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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.