Home / 628,868,613.65-868,035,260.30-405,850,726.40

Finding the Fourth Proportional to 628,868,613.65, 868,035,260.30 and 405,850,726.40

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Solution

The fourth proportional to 628,868,613.65, 868,035,260.30 and 405,850,726.40 is: 560,200,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,868,613.65 : 868,035,260.30 = 405,850,726.40 : x
  2. Step 2: Convert to fraction form
    628,868,613.65/868,035,260.30 = 405,850,726.40/x
  3. Step 3: Cross multiply
    628,868,613.65x = 868,035,260.30 × 405,850,726.40
  4. Step 4: Simplify right side
    628,868,613.65x = 352,292,740,927,198,592
  5. Step 5: Solve for x
    x = 352,292,740,927,198,592/628,868,613.65
  6. Step 6: Final answer
    x = 560,200,864.35

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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.