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Finding the Fourth Proportional to 673,764,803.70, 1,010,647,205.55 and 411,870,678.90

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Solution

The fourth proportional to 673,764,803.70, 1,010,647,205.55 and 411,870,678.90 is: 617,806,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,764,803.70 : 1,010,647,205.55 = 411,870,678.90 : x
  2. Step 2: Convert to fraction form
    673,764,803.70/1,010,647,205.55 = 411,870,678.90/x
  3. Step 3: Cross multiply
    673,764,803.70x = 1,010,647,205.55 × 411,870,678.90
  4. Step 4: Simplify right side
    673,764,803.70x = 416,255,950,678,266,304
  5. Step 5: Solve for x
    x = 416,255,950,678,266,304/673,764,803.70
  6. Step 6: Final answer
    x = 617,806,018.35

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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.