Home / 70,688,478.36-97,550,997.88-38,902,307.67

Finding the Fourth Proportional to 70,688,478.36, 97,550,997.88 and 38,902,307.67

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Solution

The fourth proportional to 70,688,478.36, 97,550,997.88 and 38,902,307.67 is: 53,685,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,688,478.36 : 97,550,997.88 = 38,902,307.67 : x
  2. Step 2: Convert to fraction form
    70,688,478.36/97,550,997.88 = 38,902,307.67/x
  3. Step 3: Cross multiply
    70,688,478.36x = 97,550,997.88 × 38,902,307.67
  4. Step 4: Simplify right side
    70,688,478.36x = 3,794,958,933,043,277.50
  5. Step 5: Solve for x
    x = 3,794,958,933,043,277.50/70,688,478.36
  6. Step 6: Final answer
    x = 53,685,678.64

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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.