Home / 621,486,693,860.15-857,642,584,590.95-347,136,250,219.65

Finding the Fourth Proportional to 621,486,693,860.15, 857,642,584,590.95 and 347,136,250,219.65

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Solution

The fourth proportional to 621,486,693,860.15, 857,642,584,590.95 and 347,136,250,219.65 is: 479,042,968,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,486,693,860.15 : 857,642,584,590.95 = 347,136,250,219.65 : x
  2. Step 2: Convert to fraction form
    621,486,693,860.15/857,642,584,590.95 = 347,136,250,219.65/x
  3. Step 3: Cross multiply
    621,486,693,860.15x = 857,642,584,590.95 × 347,136,250,219.65
  4. Step 4: Simplify right side
    621,486,693,860.15x = 297,718,830,843,591,376,502,784
  5. Step 5: Solve for x
    x = 297,718,830,843,591,376,502,784/621,486,693,860.15
  6. Step 6: Final answer
    x = 479,042,968,714.93

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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.