Home / 299,221,985.20-448,455,064.20-145,537,121.20

Finding the Fourth Proportional to 299,221,985.20, 448,455,064.20 and 145,537,121.20

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Solution

The fourth proportional to 299,221,985.20, 448,455,064.20 and 145,537,121.20 is: 218,121,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,221,985.20 : 448,455,064.20 = 145,537,121.20 : x
  2. Step 2: Convert to fraction form
    299,221,985.20/448,455,064.20 = 145,537,121.20/x
  3. Step 3: Cross multiply
    299,221,985.20x = 448,455,064.20 × 145,537,121.20
  4. Step 4: Simplify right side
    299,221,985.20x = 65,266,859,031,229,176
  5. Step 5: Solve for x
    x = 65,266,859,031,229,176/299,221,985.20
  6. Step 6: Final answer
    x = 218,121,870.25

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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.