Home / 21,065,807.36-29,069,345.80-11,896,678.64

Finding the Fourth Proportional to 21,065,807.36, 29,069,345.80 and 11,896,678.64

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Solution

The fourth proportional to 21,065,807.36, 29,069,345.80 and 11,896,678.64 is: 16,416,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,807.36 : 29,069,345.80 = 11,896,678.64 : x
  2. Step 2: Convert to fraction form
    21,065,807.36/29,069,345.80 = 11,896,678.64/x
  3. Step 3: Cross multiply
    21,065,807.36x = 29,069,345.80 × 11,896,678.64
  4. Step 4: Simplify right side
    21,065,807.36x = 345,828,665,257,633.75
  5. Step 5: Solve for x
    x = 345,828,665,257,633.75/21,065,807.36
  6. Step 6: Final answer
    x = 16,416,587.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.