Home / 699,302,851.79-965,033,026.20-381,763,097.66

Finding the Fourth Proportional to 699,302,851.79, 965,033,026.20 and 381,763,097.66

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Solution

The fourth proportional to 699,302,851.79, 965,033,026.20 and 381,763,097.66 is: 526,830,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,302,851.79 : 965,033,026.20 = 381,763,097.66 : x
  2. Step 2: Convert to fraction form
    699,302,851.79/965,033,026.20 = 381,763,097.66/x
  3. Step 3: Cross multiply
    699,302,851.79x = 965,033,026.20 × 381,763,097.66
  4. Step 4: Simplify right side
    699,302,851.79x = 368,413,997,424,407,168
  5. Step 5: Solve for x
    x = 368,413,997,424,407,168/699,302,851.79
  6. Step 6: Final answer
    x = 526,830,394.70

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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.