Home / 86,630,280.88-129,944,196.84-21,051,900.67

Finding the Fourth Proportional to 86,630,280.88, 129,944,196.84 and 21,051,900.67

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Solution

The fourth proportional to 86,630,280.88, 129,944,196.84 and 21,051,900.67 is: 31,577,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,630,280.88 : 129,944,196.84 = 21,051,900.67 : x
  2. Step 2: Convert to fraction form
    86,630,280.88/129,944,196.84 = 21,051,900.67/x
  3. Step 3: Cross multiply
    86,630,280.88x = 129,944,196.84 × 21,051,900.67
  4. Step 4: Simplify right side
    86,630,280.88x = 2,735,572,324,518,608
  5. Step 5: Solve for x
    x = 2,735,572,324,518,608/86,630,280.88
  6. Step 6: Final answer
    x = 31,577,553.45

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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.