Home / 280,411,120.74-420,240,698-218,237,506.04

Finding the Fourth Proportional to 280,411,120.74, 420,240,698 and 218,237,506.04

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Solution

The fourth proportional to 280,411,120.74, 420,240,698 and 218,237,506.04 is: 327,063,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,411,120.74 : 420,240,698 = 218,237,506.04 : x
  2. Step 2: Convert to fraction form
    280,411,120.74/420,240,698 = 218,237,506.04/x
  3. Step 3: Cross multiply
    280,411,120.74x = 420,240,698 × 218,237,506.04
  4. Step 4: Simplify right side
    280,411,120.74x = 91,712,281,868,028,816
  5. Step 5: Solve for x
    x = 91,712,281,868,028,816/280,411,120.74
  6. Step 6: Final answer
    x = 327,063,640.08

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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.