Home / 521,623,901.71-719,848,003.16-283,473,813.47

Finding the Fourth Proportional to 521,623,901.71, 719,848,003.16 and 283,473,813.47

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Solution

The fourth proportional to 521,623,901.71, 719,848,003.16 and 283,473,813.47 is: 391,197,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,623,901.71 : 719,848,003.16 = 283,473,813.47 : x
  2. Step 2: Convert to fraction form
    521,623,901.71/719,848,003.16 = 283,473,813.47/x
  3. Step 3: Cross multiply
    521,623,901.71x = 719,848,003.16 × 283,473,813.47
  4. Step 4: Simplify right side
    521,623,901.71x = 204,058,058,570,930,528
  5. Step 5: Solve for x
    x = 204,058,058,570,930,528/521,623,901.71
  6. Step 6: Final answer
    x = 391,197,676.91

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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.