Home / 439,446,587.85-606,939,602.04-289,409,942.25

Finding the Fourth Proportional to 439,446,587.85, 606,939,602.04 and 289,409,942.25

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Solution

The fourth proportional to 439,446,587.85, 606,939,602.04 and 289,409,942.25 is: 399,717,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,446,587.85 : 606,939,602.04 = 289,409,942.25 : x
  2. Step 2: Convert to fraction form
    439,446,587.85/606,939,602.04 = 289,409,942.25/x
  3. Step 3: Cross multiply
    439,446,587.85x = 606,939,602.04 × 289,409,942.25
  4. Step 4: Simplify right side
    439,446,587.85x = 175,654,355,175,634,368
  5. Step 5: Solve for x
    x = 175,654,355,175,634,368/439,446,587.85
  6. Step 6: Final answer
    x = 399,717,189.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.