Home / 666,206,014.47-919,425,973.80-368,848,257.39

Finding the Fourth Proportional to 666,206,014.47, 919,425,973.80 and 368,848,257.39

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Solution

The fourth proportional to 666,206,014.47, 919,425,973.80 and 368,848,257.39 is: 509,044,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,206,014.47 : 919,425,973.80 = 368,848,257.39 : x
  2. Step 2: Convert to fraction form
    666,206,014.47/919,425,973.80 = 368,848,257.39/x
  3. Step 3: Cross multiply
    666,206,014.47x = 919,425,973.80 × 368,848,257.39
  4. Step 4: Simplify right side
    666,206,014.47x = 339,128,668,237,919,360
  5. Step 5: Solve for x
    x = 339,128,668,237,919,360/666,206,014.47
  6. Step 6: Final answer
    x = 509,044,741.23

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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.