Home / 445,355,458.40-668,201,149.20-215,528,002.40

Finding the Fourth Proportional to 445,355,458.40, 668,201,149.20 and 215,528,002.40

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Solution

The fourth proportional to 445,355,458.40, 668,201,149.20 and 215,528,002.40 is: 323,373,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,355,458.40 : 668,201,149.20 = 215,528,002.40 : x
  2. Step 2: Convert to fraction form
    445,355,458.40/668,201,149.20 = 215,528,002.40/x
  3. Step 3: Cross multiply
    445,355,458.40x = 668,201,149.20 × 215,528,002.40
  4. Step 4: Simplify right side
    445,355,458.40x = 144,016,058,888,460,368
  5. Step 5: Solve for x
    x = 144,016,058,888,460,368/445,355,458.40
  6. Step 6: Final answer
    x = 323,373,287.95

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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.