Home / 1,186,163,870.34-1,636,919,456.40-677,593,936.38

Finding the Fourth Proportional to 1,186,163,870.34, 1,636,919,456.40 and 677,593,936.38

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Solution

The fourth proportional to 1,186,163,870.34, 1,636,919,456.40 and 677,593,936.38 is: 935,087,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,163,870.34 : 1,636,919,456.40 = 677,593,936.38 : x
  2. Step 2: Convert to fraction form
    1,186,163,870.34/1,636,919,456.40 = 677,593,936.38/x
  3. Step 3: Cross multiply
    1,186,163,870.34x = 1,636,919,456.40 × 677,593,936.38
  4. Step 4: Simplify right side
    1,186,163,870.34x = 1,109,166,697,999,085,824
  5. Step 5: Solve for x
    x = 1,109,166,697,999,085,824/1,186,163,870.34
  6. Step 6: Final answer
    x = 935,087,238.56

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Double scale
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1.5x scale

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.