Home / 61,748,061.45-92,630,635.82-20,819,206.64

Finding the Fourth Proportional to 61,748,061.45, 92,630,635.82 and 20,819,206.64

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Solution

The fourth proportional to 61,748,061.45, 92,630,635.82 and 20,819,206.64 is: 31,231,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,748,061.45 : 92,630,635.82 = 20,819,206.64 : x
  2. Step 2: Convert to fraction form
    61,748,061.45/92,630,635.82 = 20,819,206.64/x
  3. Step 3: Cross multiply
    61,748,061.45x = 92,630,635.82 × 20,819,206.64
  4. Step 4: Simplify right side
    61,748,061.45x = 1,928,496,348,595,303.50
  5. Step 5: Solve for x
    x = 1,928,496,348,595,303.50/61,748,061.45
  6. Step 6: Final answer
    x = 31,231,690.57

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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.