Home / 202,187,992,031.17-279,028,199,772.39-111,967,445,655.29

Finding the Fourth Proportional to 202,187,992,031.17, 279,028,199,772.39 and 111,967,445,655.29

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Solution

The fourth proportional to 202,187,992,031.17, 279,028,199,772.39 and 111,967,445,655.29 is: 154,519,932,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,187,992,031.17 : 279,028,199,772.39 = 111,967,445,655.29 : x
  2. Step 2: Convert to fraction form
    202,187,992,031.17/279,028,199,772.39 = 111,967,445,655.29/x
  3. Step 3: Cross multiply
    202,187,992,031.17x = 279,028,199,772.39 × 111,967,445,655.29
  4. Step 4: Simplify right side
    202,187,992,031.17x = 31,242,074,794,308,478,697,472
  5. Step 5: Solve for x
    x = 31,242,074,794,308,478,697,472/202,187,992,031.17
  6. Step 6: Final answer
    x = 154,519,932,071.40

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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.