Home / 611,701,504.30-917,552,256.45-440,790,078.70

Finding the Fourth Proportional to 611,701,504.30, 917,552,256.45 and 440,790,078.70

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Solution

The fourth proportional to 611,701,504.30, 917,552,256.45 and 440,790,078.70 is: 661,185,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,701,504.30 : 917,552,256.45 = 440,790,078.70 : x
  2. Step 2: Convert to fraction form
    611,701,504.30/917,552,256.45 = 440,790,078.70/x
  3. Step 3: Cross multiply
    611,701,504.30x = 917,552,256.45 × 440,790,078.70
  4. Step 4: Simplify right side
    611,701,504.30x = 404,447,931,331,958,080
  5. Step 5: Solve for x
    x = 404,447,931,331,958,080/611,701,504.30
  6. Step 6: Final answer
    x = 661,185,118.05

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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.