Home / 78,741,353,749.44-118,112,337,054.72-19,049,920,235.76

Finding the Fourth Proportional to 78,741,353,749.44, 118,112,337,054.72 and 19,049,920,235.76

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Solution

The fourth proportional to 78,741,353,749.44, 118,112,337,054.72 and 19,049,920,235.76 is: 28,574,954,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,741,353,749.44 : 118,112,337,054.72 = 19,049,920,235.76 : x
  2. Step 2: Convert to fraction form
    78,741,353,749.44/118,112,337,054.72 = 19,049,920,235.76/x
  3. Step 3: Cross multiply
    78,741,353,749.44x = 118,112,337,054.72 × 19,049,920,235.76
  4. Step 4: Simplify right side
    78,741,353,749.44x = 2,250,030,599,751,615,905,792
  5. Step 5: Solve for x
    x = 2,250,030,599,751,615,905,792/78,741,353,749.44
  6. Step 6: Final answer
    x = 28,574,954,488.48

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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.