Home / 202,187,992,019.68-279,028,199,756.50-111,967,445,643.76

Finding the Fourth Proportional to 202,187,992,019.68, 279,028,199,756.50 and 111,967,445,643.76

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Solution

The fourth proportional to 202,187,992,019.68, 279,028,199,756.50 and 111,967,445,643.76 is: 154,519,932,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,187,992,019.68 : 279,028,199,756.50 = 111,967,445,643.76 : x
  2. Step 2: Convert to fraction form
    202,187,992,019.68/279,028,199,756.50 = 111,967,445,643.76/x
  3. Step 3: Cross multiply
    202,187,992,019.68x = 279,028,199,756.50 × 111,967,445,643.76
  4. Step 4: Simplify right side
    202,187,992,019.68x = 31,242,074,789,312,118,915,072
  5. Step 5: Solve for x
    x = 31,242,074,789,312,118,915,072/202,187,992,019.68
  6. Step 6: Final answer
    x = 154,519,932,055.47

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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.