Home / 20,730,497.12-31,066,515.84-9,789,012.32

Finding the Fourth Proportional to 20,730,497.12, 31,066,515.84 and 9,789,012.32

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Solution

The fourth proportional to 20,730,497.12, 31,066,515.84 and 9,789,012.32 is: 14,669,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,497.12 : 31,066,515.84 = 9,789,012.32 : x
  2. Step 2: Convert to fraction form
    20,730,497.12/31,066,515.84 = 9,789,012.32/x
  3. Step 3: Cross multiply
    20,730,497.12x = 31,066,515.84 × 9,789,012.32
  4. Step 4: Simplify right side
    20,730,497.12x = 304,110,506,297,235.19
  5. Step 5: Solve for x
    x = 304,110,506,297,235.19/20,730,497.12
  6. Step 6: Final answer
    x = 14,669,716.05

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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.