Home / 290,012,794.98-435,007,394.97-71,657,638.40

Finding the Fourth Proportional to 290,012,794.98, 435,007,394.97 and 71,657,638.40

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Solution

The fourth proportional to 290,012,794.98, 435,007,394.97 and 71,657,638.40 is: 107,483,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,012,794.98 : 435,007,394.97 = 71,657,638.40 : x
  2. Step 2: Convert to fraction form
    290,012,794.98/435,007,394.97 = 71,657,638.40/x
  3. Step 3: Cross multiply
    290,012,794.98x = 435,007,394.97 × 71,657,638.40
  4. Step 4: Simplify right side
    290,012,794.98x = 31,171,602,610,905,044
  5. Step 5: Solve for x
    x = 31,171,602,610,905,044/290,012,794.98
  6. Step 6: Final answer
    x = 107,483,542.63

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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.