Home / 420,768,031.80-631,152,047.70-237,102,022.20

Finding the Fourth Proportional to 420,768,031.80, 631,152,047.70 and 237,102,022.20

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Solution

The fourth proportional to 420,768,031.80, 631,152,047.70 and 237,102,022.20 is: 355,653,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,768,031.80 : 631,152,047.70 = 237,102,022.20 : x
  2. Step 2: Convert to fraction form
    420,768,031.80/631,152,047.70 = 237,102,022.20/x
  3. Step 3: Cross multiply
    420,768,031.80x = 631,152,047.70 × 237,102,022.20
  4. Step 4: Simplify right side
    420,768,031.80x = 149,647,426,825,340,864
  5. Step 5: Solve for x
    x = 149,647,426,825,340,864/420,768,031.80
  6. Step 6: Final answer
    x = 355,653,033.30

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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.