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Finding the Fourth Proportional to 13,210,266.80, 19,796,737.80 and 9,771,719.60

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Solution

The fourth proportional to 13,210,266.80, 19,796,737.80 and 9,771,719.60 is: 14,643,774.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,266.80 : 19,796,737.80 = 9,771,719.60 : x
  2. Step 2: Convert to fraction form
    13,210,266.80/19,796,737.80 = 9,771,719.60/x
  3. Step 3: Cross multiply
    13,210,266.80x = 19,796,737.80 × 9,771,719.60
  4. Step 4: Simplify right side
    13,210,266.80x = 193,448,170,776,320.88
  5. Step 5: Solve for x
    x = 193,448,170,776,320.88/13,210,266.80
  6. Step 6: Final answer
    x = 14,643,774.70

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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.