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Finding the Fourth Proportional to 489,343,065.80, 734,014,598.70 and 166,226,937.80

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Solution

The fourth proportional to 489,343,065.80, 734,014,598.70 and 166,226,937.80 is: 249,340,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,343,065.80 : 734,014,598.70 = 166,226,937.80 : x
  2. Step 2: Convert to fraction form
    489,343,065.80/734,014,598.70 = 166,226,937.80/x
  3. Step 3: Cross multiply
    489,343,065.80x = 734,014,598.70 × 166,226,937.80
  4. Step 4: Simplify right side
    489,343,065.80x = 122,012,999,042,396,880
  5. Step 5: Solve for x
    x = 122,012,999,042,396,880/489,343,065.80
  6. Step 6: Final answer
    x = 249,340,406.70

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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.