Home / 720,580,352,776.96-994,416,074,579.10-395,416,799,830.58

Finding the Fourth Proportional to 720,580,352,776.96, 994,416,074,579.10 and 395,416,799,830.58

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Solution

The fourth proportional to 720,580,352,776.96, 994,416,074,579.10 and 395,416,799,830.58 is: 545,683,518,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,580,352,776.96 : 994,416,074,579.10 = 395,416,799,830.58 : x
  2. Step 2: Convert to fraction form
    720,580,352,776.96/994,416,074,579.10 = 395,416,799,830.58/x
  3. Step 3: Cross multiply
    720,580,352,776.96x = 994,416,074,579.10 × 395,416,799,830.58
  4. Step 4: Simplify right side
    720,580,352,776.96x = 393,208,821,910,155,084,955,648
  5. Step 5: Solve for x
    x = 393,208,821,910,155,084,955,648/720,580,352,776.96
  6. Step 6: Final answer
    x = 545,683,518,007.14

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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.