Home / 278,636,329.24-384,518,380.38-153,190,659.64

Finding the Fourth Proportional to 278,636,329.24, 384,518,380.38 and 153,190,659.64

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Solution

The fourth proportional to 278,636,329.24, 384,518,380.38 and 153,190,659.64 is: 211,403,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,636,329.24 : 384,518,380.38 = 153,190,659.64 : x
  2. Step 2: Convert to fraction form
    278,636,329.24/384,518,380.38 = 153,190,659.64/x
  3. Step 3: Cross multiply
    278,636,329.24x = 384,518,380.38 × 153,190,659.64
  4. Step 4: Simplify right side
    278,636,329.24x = 58,904,624,334,116,624
  5. Step 5: Solve for x
    x = 58,904,624,334,116,624/278,636,329.24
  6. Step 6: Final answer
    x = 211,403,245.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.