Home / 278,636,323.24-384,518,372.10-153,190,653.64

Finding the Fourth Proportional to 278,636,323.24, 384,518,372.10 and 153,190,653.64

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Solution

The fourth proportional to 278,636,323.24, 384,518,372.10 and 153,190,653.64 is: 211,403,237.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,636,323.24 : 384,518,372.10 = 153,190,653.64 : x
  2. Step 2: Convert to fraction form
    278,636,323.24/384,518,372.10 = 153,190,653.64/x
  3. Step 3: Cross multiply
    278,636,323.24x = 384,518,372.10 × 153,190,653.64
  4. Step 4: Simplify right side
    278,636,323.24x = 58,904,620,758,587,736
  5. Step 5: Solve for x
    x = 58,904,620,758,587,736/278,636,323.24
  6. Step 6: Final answer
    x = 211,403,237.29

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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.