Home / 1,071,291,011.42-1,478,375,654.28-601,392,208.16

Finding the Fourth Proportional to 1,071,291,011.42, 1,478,375,654.28 and 601,392,208.16

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Solution

The fourth proportional to 1,071,291,011.42, 1,478,375,654.28 and 601,392,208.16 is: 829,917,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,291,011.42 : 1,478,375,654.28 = 601,392,208.16 : x
  2. Step 2: Convert to fraction form
    1,071,291,011.42/1,478,375,654.28 = 601,392,208.16/x
  3. Step 3: Cross multiply
    1,071,291,011.42x = 1,478,375,654.28 × 601,392,208.16
  4. Step 4: Simplify right side
    1,071,291,011.42x = 889,083,599,217,433,856
  5. Step 5: Solve for x
    x = 889,083,599,217,433,856/1,071,291,011.42
  6. Step 6: Final answer
    x = 829,917,911.88

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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.