Home / 212,943,743.40-319,415,615.10-136,416,239.40

Finding the Fourth Proportional to 212,943,743.40, 319,415,615.10 and 136,416,239.40

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Solution

The fourth proportional to 212,943,743.40, 319,415,615.10 and 136,416,239.40 is: 204,624,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,943,743.40 : 319,415,615.10 = 136,416,239.40 : x
  2. Step 2: Convert to fraction form
    212,943,743.40/319,415,615.10 = 136,416,239.40/x
  3. Step 3: Cross multiply
    212,943,743.40x = 319,415,615.10 × 136,416,239.40
  4. Step 4: Simplify right side
    212,943,743.40x = 43,573,477,017,579,864
  5. Step 5: Solve for x
    x = 43,573,477,017,579,864/212,943,743.40
  6. Step 6: Final answer
    x = 204,624,359.10

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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.