Home / 19,985,030.37-29,973,061.60-9,191,961.81

Finding the Fourth Proportional to 19,985,030.37, 29,973,061.60 and 9,191,961.81

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Solution

The fourth proportional to 19,985,030.37, 29,973,061.60 and 9,191,961.81 is: 13,785,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985,030.37 : 29,973,061.60 = 9,191,961.81 : x
  2. Step 2: Convert to fraction form
    19,985,030.37/29,973,061.60 = 9,191,961.81/x
  3. Step 3: Cross multiply
    19,985,030.37x = 29,973,061.60 × 9,191,961.81
  4. Step 4: Simplify right side
    19,985,030.37x = 275,511,237,532,997.59
  5. Step 5: Solve for x
    x = 275,511,237,532,997.59/19,985,030.37
  6. Step 6: Final answer
    x = 13,785,880.35

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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.