Home / 314,928,987.70-472,393,481.55-290,057,548.90

Finding the Fourth Proportional to 314,928,987.70, 472,393,481.55 and 290,057,548.90

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Solution

The fourth proportional to 314,928,987.70, 472,393,481.55 and 290,057,548.90 is: 435,086,323.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,987.70 : 472,393,481.55 = 290,057,548.90 : x
  2. Step 2: Convert to fraction form
    314,928,987.70/472,393,481.55 = 290,057,548.90/x
  3. Step 3: Cross multiply
    314,928,987.70x = 472,393,481.55 × 290,057,548.90
  4. Step 4: Simplify right side
    314,928,987.70x = 137,021,295,374,730,368
  5. Step 5: Solve for x
    x = 137,021,295,374,730,368/314,928,987.70
  6. Step 6: Final answer
    x = 435,086,323.35

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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.