Home / 408,297,312,008.70-612,445,968,013.05-353,259,654,920.70

Finding the Fourth Proportional to 408,297,312,008.70, 612,445,968,013.05 and 353,259,654,920.70

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Solution

The fourth proportional to 408,297,312,008.70, 612,445,968,013.05 and 353,259,654,920.70 is: 529,889,482,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,297,312,008.70 : 612,445,968,013.05 = 353,259,654,920.70 : x
  2. Step 2: Convert to fraction form
    408,297,312,008.70/612,445,968,013.05 = 353,259,654,920.70/x
  3. Step 3: Cross multiply
    408,297,312,008.70x = 612,445,968,013.05 × 353,259,654,920.70
  4. Step 4: Simplify right side
    408,297,312,008.70x = 216,352,451,317,864,150,859,776
  5. Step 5: Solve for x
    x = 216,352,451,317,864,150,859,776/408,297,312,008.70
  6. Step 6: Final answer
    x = 529,889,482,381.05

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Double scale
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1.5x scale

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.