Home / 70,912,148.93-97,860,262.89-39,972,310.01

Finding the Fourth Proportional to 70,912,148.93, 97,860,262.89 and 39,972,310.01

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Solution

The fourth proportional to 70,912,148.93, 97,860,262.89 and 39,972,310.01 is: 55,162,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,912,148.93 : 97,860,262.89 = 39,972,310.01 : x
  2. Step 2: Convert to fraction form
    70,912,148.93/97,860,262.89 = 39,972,310.01/x
  3. Step 3: Cross multiply
    70,912,148.93x = 97,860,262.89 × 39,972,310.01
  4. Step 4: Simplify right side
    70,912,148.93x = 3,911,700,765,926,749
  5. Step 5: Solve for x
    x = 3,911,700,765,926,749/70,912,148.93
  6. Step 6: Final answer
    x = 55,162,631.86

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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.