Home / 299,196,209.70-448,416,400.95-145,511,345.70

Finding the Fourth Proportional to 299,196,209.70, 448,416,400.95 and 145,511,345.70

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Solution

The fourth proportional to 299,196,209.70, 448,416,400.95 and 145,511,345.70 is: 218,083,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,196,209.70 : 448,416,400.95 = 145,511,345.70 : x
  2. Step 2: Convert to fraction form
    299,196,209.70/448,416,400.95 = 145,511,345.70/x
  3. Step 3: Cross multiply
    299,196,209.70x = 448,416,400.95 × 145,511,345.70
  4. Step 4: Simplify right side
    299,196,209.70x = 65,249,673,936,185,248
  5. Step 5: Solve for x
    x = 65,249,673,936,185,248/299,196,209.70
  6. Step 6: Final answer
    x = 218,083,223.72

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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.