Home / 645,141,297.80-967,711,946.70-578,628,504.20

Finding the Fourth Proportional to 645,141,297.80, 967,711,946.70 and 578,628,504.20

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Solution

The fourth proportional to 645,141,297.80, 967,711,946.70 and 578,628,504.20 is: 867,942,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,141,297.80 : 967,711,946.70 = 578,628,504.20 : x
  2. Step 2: Convert to fraction form
    645,141,297.80/967,711,946.70 = 578,628,504.20/x
  3. Step 3: Cross multiply
    645,141,297.80x = 967,711,946.70 × 578,628,504.20
  4. Step 4: Simplify right side
    645,141,297.80x = 559,945,716,215,491,200
  5. Step 5: Solve for x
    x = 559,945,716,215,491,200/645,141,297.80
  6. Step 6: Final answer
    x = 867,942,756.30

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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.