Home / 217,242,854.40-325,439,128.80-130,724,259.60

Finding the Fourth Proportional to 217,242,854.40, 325,439,128.80 and 130,724,259.60

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Solution

The fourth proportional to 217,242,854.40, 325,439,128.80 and 130,724,259.60 is: 195,830,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,242,854.40 : 325,439,128.80 = 130,724,259.60 : x
  2. Step 2: Convert to fraction form
    217,242,854.40/325,439,128.80 = 130,724,259.60/x
  3. Step 3: Cross multiply
    217,242,854.40x = 325,439,128.80 × 130,724,259.60
  4. Step 4: Simplify right side
    217,242,854.40x = 42,542,789,157,249,040
  5. Step 5: Solve for x
    x = 42,542,789,157,249,040/217,242,854.40
  6. Step 6: Final answer
    x = 195,830,556.89

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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.