Home / 699,159,662,635.52-964,830,066,258.72-390,515,525,909.92

Finding the Fourth Proportional to 699,159,662,635.52, 964,830,066,258.72 and 390,515,525,909.92

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Solution

The fourth proportional to 699,159,662,635.52, 964,830,066,258.72 and 390,515,525,909.92 is: 538,905,690,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,159,662,635.52 : 964,830,066,258.72 = 390,515,525,909.92 : x
  2. Step 2: Convert to fraction form
    699,159,662,635.52/964,830,066,258.72 = 390,515,525,909.92/x
  3. Step 3: Cross multiply
    699,159,662,635.52x = 964,830,066,258.72 × 390,515,525,909.92
  4. Step 4: Simplify right side
    699,159,662,635.52x = 376,781,120,738,726,990,839,808
  5. Step 5: Solve for x
    x = 376,781,120,738,726,990,839,808/699,159,662,635.52
  6. Step 6: Final answer
    x = 538,905,690,466.22

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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.