Home / 299,681,636.80-449,018,570.40-248,285,387.20

Finding the Fourth Proportional to 299,681,636.80, 449,018,570.40 and 248,285,387.20

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Solution

The fourth proportional to 299,681,636.80, 449,018,570.40 and 248,285,387.20 is: 372,010,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,681,636.80 : 449,018,570.40 = 248,285,387.20 : x
  2. Step 2: Convert to fraction form
    299,681,636.80/449,018,570.40 = 248,285,387.20/x
  3. Step 3: Cross multiply
    299,681,636.80x = 449,018,570.40 × 248,285,387.20
  4. Step 4: Simplify right side
    299,681,636.80x = 111,484,749,611,754,448
  5. Step 5: Solve for x
    x = 111,484,749,611,754,448/299,681,636.80
  6. Step 6: Final answer
    x = 372,010,613.67

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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.