Home / 262,441,815.80-393,662,723.70-139,997,809.40

Finding the Fourth Proportional to 262,441,815.80, 393,662,723.70 and 139,997,809.40

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Solution

The fourth proportional to 262,441,815.80, 393,662,723.70 and 139,997,809.40 is: 209,996,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,441,815.80 : 393,662,723.70 = 139,997,809.40 : x
  2. Step 2: Convert to fraction form
    262,441,815.80/393,662,723.70 = 139,997,809.40/x
  3. Step 3: Cross multiply
    262,441,815.80x = 393,662,723.70 × 139,997,809.40
  4. Step 4: Simplify right side
    262,441,815.80x = 55,111,918,960,437,464
  5. Step 5: Solve for x
    x = 55,111,918,960,437,464/262,441,815.80
  6. Step 6: Final answer
    x = 209,996,714.10

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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.