Home / 314,928,997.20-472,393,495.80-290,057,558.40

Finding the Fourth Proportional to 314,928,997.20, 472,393,495.80 and 290,057,558.40

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Solution

The fourth proportional to 314,928,997.20, 472,393,495.80 and 290,057,558.40 is: 435,086,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,997.20 : 472,393,495.80 = 290,057,558.40 : x
  2. Step 2: Convert to fraction form
    314,928,997.20/472,393,495.80 = 290,057,558.40/x
  3. Step 3: Cross multiply
    314,928,997.20x = 472,393,495.80 × 290,057,558.40
  4. Step 4: Simplify right side
    314,928,997.20x = 137,021,303,995,788,640
  5. Step 5: Solve for x
    x = 137,021,303,995,788,640/314,928,997.20
  6. Step 6: Final answer
    x = 435,086,337.60

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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.