Home / 19,985,048.40-29,973,088.56-9,191,979.84

Finding the Fourth Proportional to 19,985,048.40, 29,973,088.56 and 9,191,979.84

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Solution

The fourth proportional to 19,985,048.40, 29,973,088.56 and 9,191,979.84 is: 13,785,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985,048.40 : 29,973,088.56 = 9,191,979.84 : x
  2. Step 2: Convert to fraction form
    19,985,048.40/29,973,088.56 = 9,191,979.84/x
  3. Step 3: Cross multiply
    19,985,048.40x = 29,973,088.56 × 9,191,979.84
  4. Step 4: Simplify right side
    19,985,048.40x = 275,512,025,786,054.62
  5. Step 5: Solve for x
    x = 275,512,025,786,054.62/19,985,048.40
  6. Step 6: Final answer
    x = 13,785,907.36

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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.