Home / 1,992,095,178.80-2,988,142,768.20-611,907,472.40

Finding the Fourth Proportional to 1,992,095,178.80, 2,988,142,768.20 and 611,907,472.40

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Solution

The fourth proportional to 1,992,095,178.80, 2,988,142,768.20 and 611,907,472.40 is: 917,861,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,095,178.80 : 2,988,142,768.20 = 611,907,472.40 : x
  2. Step 2: Convert to fraction form
    1,992,095,178.80/2,988,142,768.20 = 611,907,472.40/x
  3. Step 3: Cross multiply
    1,992,095,178.80x = 2,988,142,768.20 × 611,907,472.40
  4. Step 4: Simplify right side
    1,992,095,178.80x = 1,828,466,888,459,600,896
  5. Step 5: Solve for x
    x = 1,828,466,888,459,600,896/1,992,095,178.80
  6. Step 6: Final answer
    x = 917,861,208.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.