Home / 286,291,567,986.40-429,437,351,979.60-126,945,520,860.70

Finding the Fourth Proportional to 286,291,567,986.40, 429,437,351,979.60 and 126,945,520,860.70

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Solution

The fourth proportional to 286,291,567,986.40, 429,437,351,979.60 and 126,945,520,860.70 is: 190,418,281,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,291,567,986.40 : 429,437,351,979.60 = 126,945,520,860.70 : x
  2. Step 2: Convert to fraction form
    286,291,567,986.40/429,437,351,979.60 = 126,945,520,860.70/x
  3. Step 3: Cross multiply
    286,291,567,986.40x = 429,437,351,979.60 × 126,945,520,860.70
  4. Step 4: Simplify right side
    286,291,567,986.40x = 54,515,148,324,090,075,414,528
  5. Step 5: Solve for x
    x = 54,515,148,324,090,075,414,528/286,291,567,986.40
  6. Step 6: Final answer
    x = 190,418,281,291.05

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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.