Home / 406,315,548,375.45-609,070,744,129.73-190,798,293,661.53

Finding the Fourth Proportional to 406,315,548,375.45, 609,070,744,129.73 and 190,798,293,661.53

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Solution

The fourth proportional to 406,315,548,375.45, 609,070,744,129.73 and 190,798,293,661.53 is: 286,008,397,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,315,548,375.45 : 609,070,744,129.73 = 190,798,293,661.53 : x
  2. Step 2: Convert to fraction form
    406,315,548,375.45/609,070,744,129.73 = 190,798,293,661.53/x
  3. Step 3: Cross multiply
    406,315,548,375.45x = 609,070,744,129.73 × 190,798,293,661.53
  4. Step 4: Simplify right side
    406,315,548,375.45x = 116,209,658,699,110,812,745,728
  5. Step 5: Solve for x
    x = 116,209,658,699,110,812,745,728/406,315,548,375.45
  6. Step 6: Final answer
    x = 286,008,397,078.94

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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.