Home / 28,973,376,003.40-43,460,064,005.10-20,157,407,542.60

Finding the Fourth Proportional to 28,973,376,003.40, 43,460,064,005.10 and 20,157,407,542.60

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Solution

The fourth proportional to 28,973,376,003.40, 43,460,064,005.10 and 20,157,407,542.60 is: 30,236,111,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973,376,003.40 : 43,460,064,005.10 = 20,157,407,542.60 : x
  2. Step 2: Convert to fraction form
    28,973,376,003.40/43,460,064,005.10 = 20,157,407,542.60/x
  3. Step 3: Cross multiply
    28,973,376,003.40x = 43,460,064,005.10 × 20,157,407,542.60
  4. Step 4: Simplify right side
    28,973,376,003.40x = 876,042,221,978,281,443,328
  5. Step 5: Solve for x
    x = 876,042,221,978,281,443,328/28,973,376,003.40
  6. Step 6: Final answer
    x = 30,236,111,313.90

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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.