Home / 679,937,848.76-1,017,795,550.26-368,271,379.64

Finding the Fourth Proportional to 679,937,848.76, 1,017,795,550.26 and 368,271,379.64

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Solution

The fourth proportional to 679,937,848.76, 1,017,795,550.26 and 368,271,379.64 is: 551,263,578.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,937,848.76 : 1,017,795,550.26 = 368,271,379.64 : x
  2. Step 2: Convert to fraction form
    679,937,848.76/1,017,795,550.26 = 368,271,379.64/x
  3. Step 3: Cross multiply
    679,937,848.76x = 1,017,795,550.26 × 368,271,379.64
  4. Step 4: Simplify right side
    679,937,848.76x = 374,824,971,485,703,168
  5. Step 5: Solve for x
    x = 374,824,971,485,703,168/679,937,848.76
  6. Step 6: Final answer
    x = 551,263,578.24

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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.