Home / 298,950,905.40-448,426,358.10-257,339,075.10

Finding the Fourth Proportional to 298,950,905.40, 448,426,358.10 and 257,339,075.10

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Solution

The fourth proportional to 298,950,905.40, 448,426,358.10 and 257,339,075.10 is: 386,008,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,950,905.40 : 448,426,358.10 = 257,339,075.10 : x
  2. Step 2: Convert to fraction form
    298,950,905.40/448,426,358.10 = 257,339,075.10/x
  3. Step 3: Cross multiply
    298,950,905.40x = 448,426,358.10 × 257,339,075.10
  4. Step 4: Simplify right side
    298,950,905.40x = 115,397,624,243,915,392
  5. Step 5: Solve for x
    x = 115,397,624,243,915,392/298,950,905.40
  6. Step 6: Final answer
    x = 386,008,612.65

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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.