Home / 885,738,835.80-1,328,608,253.70-272,243,345.40

Finding the Fourth Proportional to 885,738,835.80, 1,328,608,253.70 and 272,243,345.40

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Solution

The fourth proportional to 885,738,835.80, 1,328,608,253.70 and 272,243,345.40 is: 408,365,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,738,835.80 : 1,328,608,253.70 = 272,243,345.40 : x
  2. Step 2: Convert to fraction form
    885,738,835.80/1,328,608,253.70 = 272,243,345.40/x
  3. Step 3: Cross multiply
    885,738,835.80x = 1,328,608,253.70 × 272,243,345.40
  4. Step 4: Simplify right side
    885,738,835.80x = 361,704,755,713,339,904
  5. Step 5: Solve for x
    x = 361,704,755,713,339,904/885,738,835.80
  6. Step 6: Final answer
    x = 408,365,018.10

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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.