Home / 66,816,069.36-100,239,016.68-21,380,590.32

Finding the Fourth Proportional to 66,816,069.36, 100,239,016.68 and 21,380,590.32

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Solution

The fourth proportional to 66,816,069.36, 100,239,016.68 and 21,380,590.32 is: 32,075,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,816,069.36 : 100,239,016.68 = 21,380,590.32 : x
  2. Step 2: Convert to fraction form
    66,816,069.36/100,239,016.68 = 21,380,590.32/x
  3. Step 3: Cross multiply
    66,816,069.36x = 100,239,016.68 × 21,380,590.32
  4. Step 4: Simplify right side
    66,816,069.36x = 2,143,169,349,714,726.75
  5. Step 5: Solve for x
    x = 2,143,169,349,714,726.75/66,816,069.36
  6. Step 6: Final answer
    x = 32,075,657.40

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1.5x scale

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.