Home / 278,636,328.24-384,518,379-153,190,658.64

Finding the Fourth Proportional to 278,636,328.24, 384,518,379 and 153,190,658.64

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Solution

The fourth proportional to 278,636,328.24, 384,518,379 and 153,190,658.64 is: 211,403,244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,636,328.24 : 384,518,379 = 153,190,658.64 : x
  2. Step 2: Convert to fraction form
    278,636,328.24/384,518,379 = 153,190,658.64/x
  3. Step 3: Cross multiply
    278,636,328.24x = 384,518,379 × 153,190,658.64
  4. Step 4: Simplify right side
    278,636,328.24x = 58,904,623,738,195,136
  5. Step 5: Solve for x
    x = 58,904,623,738,195,136/278,636,328.24
  6. Step 6: Final answer
    x = 211,403,244.19

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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.