Home / 314,928,312.90-472,392,469.35-289,986,015.30

Finding the Fourth Proportional to 314,928,312.90, 472,392,469.35 and 289,986,015.30

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Solution

The fourth proportional to 314,928,312.90, 472,392,469.35 and 289,986,015.30 is: 434,979,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,312.90 : 472,392,469.35 = 289,986,015.30 : x
  2. Step 2: Convert to fraction form
    314,928,312.90/472,392,469.35 = 289,986,015.30/x
  3. Step 3: Cross multiply
    314,928,312.90x = 472,392,469.35 × 289,986,015.30
  4. Step 4: Simplify right side
    314,928,312.90x = 136,987,209,844,533,888
  5. Step 5: Solve for x
    x = 136,987,209,844,533,888/314,928,312.90
  6. Step 6: Final answer
    x = 434,979,022.95

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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.