Home / 72,970,175,938.98-100,709,414,764.29-40,857,607,556.67

Finding the Fourth Proportional to 72,970,175,938.98, 100,709,414,764.29 and 40,857,607,556.67

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Solution

The fourth proportional to 72,970,175,938.98, 100,709,414,764.29 and 40,857,607,556.67 is: 56,389,417,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,970,175,938.98 : 100,709,414,764.29 = 40,857,607,556.67 : x
  2. Step 2: Convert to fraction form
    72,970,175,938.98/100,709,414,764.29 = 40,857,607,556.67/x
  3. Step 3: Cross multiply
    72,970,175,938.98x = 100,709,414,764.29 × 40,857,607,556.67
  4. Step 4: Simplify right side
    72,970,175,938.98x = 4,114,745,745,701,267,832,832
  5. Step 5: Solve for x
    x = 4,114,745,745,701,267,832,832/72,970,175,938.98
  6. Step 6: Final answer
    x = 56,389,417,906.05

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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.