Home / 666,631,031.81-995,892,001.41-431,546,608.58

Finding the Fourth Proportional to 666,631,031.81, 995,892,001.41 and 431,546,608.58

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Solution

The fourth proportional to 666,631,031.81, 995,892,001.41 and 431,546,608.58 is: 644,695,184.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,631,031.81 : 995,892,001.41 = 431,546,608.58 : x
  2. Step 2: Convert to fraction form
    666,631,031.81/995,892,001.41 = 431,546,608.58/x
  3. Step 3: Cross multiply
    666,631,031.81x = 995,892,001.41 × 431,546,608.58
  4. Step 4: Simplify right side
    666,631,031.81x = 429,773,815,717,072,960
  5. Step 5: Solve for x
    x = 429,773,815,717,072,960/666,631,031.81
  6. Step 6: Final answer
    x = 644,695,184.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.