Home / 71,938,684,135.84-99,276,559,922.64-39,385,354,997.92

Finding the Fourth Proportional to 71,938,684,135.84, 99,276,559,922.64 and 39,385,354,997.92

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Solution

The fourth proportional to 71,938,684,135.84, 99,276,559,922.64 and 39,385,354,997.92 is: 54,352,433,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,938,684,135.84 : 99,276,559,922.64 = 39,385,354,997.92 : x
  2. Step 2: Convert to fraction form
    71,938,684,135.84/99,276,559,922.64 = 39,385,354,997.92/x
  3. Step 3: Cross multiply
    71,938,684,135.84x = 99,276,559,922.64 × 39,385,354,997.92
  4. Step 4: Simplify right side
    71,938,684,135.84x = 3,910,042,555,525,453,316,096
  5. Step 5: Solve for x
    x = 3,910,042,555,525,453,316,096/71,938,684,135.84
  6. Step 6: Final answer
    x = 54,352,433,638.38

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Double scale
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1.5x scale

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.