Home / 472,392,874.80-708,589,312.20-290,742,404.40

Finding the Fourth Proportional to 472,392,874.80, 708,589,312.20 and 290,742,404.40

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Solution

The fourth proportional to 472,392,874.80, 708,589,312.20 and 290,742,404.40 is: 436,113,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,874.80 : 708,589,312.20 = 290,742,404.40 : x
  2. Step 2: Convert to fraction form
    472,392,874.80/708,589,312.20 = 290,742,404.40/x
  3. Step 3: Cross multiply
    472,392,874.80x = 708,589,312.20 × 290,742,404.40
  4. Step 4: Simplify right side
    472,392,874.80x = 206,016,960,361,170,240
  5. Step 5: Solve for x
    x = 206,016,960,361,170,240/472,392,874.80
  6. Step 6: Final answer
    x = 436,113,606.60

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1.5x scale

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.