Home / 421,300,302.20-631,950,453.30-370,281,966.20

Finding the Fourth Proportional to 421,300,302.20, 631,950,453.30 and 370,281,966.20

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Solution

The fourth proportional to 421,300,302.20, 631,950,453.30 and 370,281,966.20 is: 555,422,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,300,302.20 : 631,950,453.30 = 370,281,966.20 : x
  2. Step 2: Convert to fraction form
    421,300,302.20/631,950,453.30 = 370,281,966.20/x
  3. Step 3: Cross multiply
    421,300,302.20x = 631,950,453.30 × 370,281,966.20
  4. Step 4: Simplify right side
    421,300,302.20x = 233,999,856,388,905,248
  5. Step 5: Solve for x
    x = 233,999,856,388,905,248/421,300,302.20
  6. Step 6: Final answer
    x = 555,422,949.30

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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.