Home / 314,928,616.90-472,392,925.35-289,986,319.30

Finding the Fourth Proportional to 314,928,616.90, 472,392,925.35 and 289,986,319.30

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Solution

The fourth proportional to 314,928,616.90, 472,392,925.35 and 289,986,319.30 is: 434,979,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,616.90 : 472,392,925.35 = 289,986,319.30 : x
  2. Step 2: Convert to fraction form
    314,928,616.90/472,392,925.35 = 289,986,319.30/x
  3. Step 3: Cross multiply
    314,928,616.90x = 472,392,925.35 × 289,986,319.30
  4. Step 4: Simplify right side
    314,928,616.90x = 136,987,485,685,606,176
  5. Step 5: Solve for x
    x = 136,987,485,685,606,176/314,928,616.90
  6. Step 6: Final answer
    x = 434,979,478.95

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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.