Home / 314,928,759.20-472,393,138.80-290,057,320.40

Finding the Fourth Proportional to 314,928,759.20, 472,393,138.80 and 290,057,320.40

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Solution

The fourth proportional to 314,928,759.20, 472,393,138.80 and 290,057,320.40 is: 435,085,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,759.20 : 472,393,138.80 = 290,057,320.40 : x
  2. Step 2: Convert to fraction form
    314,928,759.20/472,393,138.80 = 290,057,320.40/x
  3. Step 3: Cross multiply
    314,928,759.20x = 472,393,138.80 × 290,057,320.40
  4. Step 4: Simplify right side
    314,928,759.20x = 137,021,088,015,673,264
  5. Step 5: Solve for x
    x = 137,021,088,015,673,264/314,928,759.20
  6. Step 6: Final answer
    x = 435,085,980.60

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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.