Home / 672,378,153.04-1,006,498,647.54-438,705,710.48

Finding the Fourth Proportional to 672,378,153.04, 1,006,498,647.54 and 438,705,710.48

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Solution

The fourth proportional to 672,378,153.04, 1,006,498,647.54 and 438,705,710.48 is: 656,708,880.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,378,153.04 : 1,006,498,647.54 = 438,705,710.48 : x
  2. Step 2: Convert to fraction form
    672,378,153.04/1,006,498,647.54 = 438,705,710.48/x
  3. Step 3: Cross multiply
    672,378,153.04x = 1,006,498,647.54 × 438,705,710.48
  4. Step 4: Simplify right side
    672,378,153.04x = 441,556,704,266,194,816
  5. Step 5: Solve for x
    x = 441,556,704,266,194,816/672,378,153.04
  6. Step 6: Final answer
    x = 656,708,880.66

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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.