Home / 344,038,513.80-516,256,836.30-128,649,534.60

Finding the Fourth Proportional to 344,038,513.80, 516,256,836.30 and 128,649,534.60

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Solution

The fourth proportional to 344,038,513.80, 516,256,836.30 and 128,649,534.60 is: 193,048,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,038,513.80 : 516,256,836.30 = 128,649,534.60 : x
  2. Step 2: Convert to fraction form
    344,038,513.80/516,256,836.30 = 128,649,534.60/x
  3. Step 3: Cross multiply
    344,038,513.80x = 516,256,836.30 × 128,649,534.60
  4. Step 4: Simplify right side
    344,038,513.80x = 66,416,201,724,063,384
  5. Step 5: Solve for x
    x = 66,416,201,724,063,384/344,038,513.80
  6. Step 6: Final answer
    x = 193,048,740.36

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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.