Home / 403,987,675,748.78-557,502,628,672.23-228,041,184,325.71

Finding the Fourth Proportional to 403,987,675,748.78, 557,502,628,672.23 and 228,041,184,325.71

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Solution

The fourth proportional to 403,987,675,748.78, 557,502,628,672.23 and 228,041,184,325.71 is: 314,696,628,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,987,675,748.78 : 557,502,628,672.23 = 228,041,184,325.71 : x
  2. Step 2: Convert to fraction form
    403,987,675,748.78/557,502,628,672.23 = 228,041,184,325.71/x
  3. Step 3: Cross multiply
    403,987,675,748.78x = 557,502,628,672.23 × 228,041,184,325.71
  4. Step 4: Simplify right side
    403,987,675,748.78x = 127,133,559,707,111,843,168,256
  5. Step 5: Solve for x
    x = 127,133,559,707,111,843,168,256/403,987,675,748.78
  6. Step 6: Final answer
    x = 314,696,628,978.78

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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.