Home / 13,851,502.20-19,116,971.79-7,971,015.60

Finding the Fourth Proportional to 13,851,502.20, 19,116,971.79 and 7,971,015.60

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Solution

The fourth proportional to 13,851,502.20, 19,116,971.79 and 7,971,015.60 is: 11,001,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851,502.20 : 19,116,971.79 = 7,971,015.60 : x
  2. Step 2: Convert to fraction form
    13,851,502.20/19,116,971.79 = 7,971,015.60/x
  3. Step 3: Cross multiply
    13,851,502.20x = 19,116,971.79 × 7,971,015.60
  4. Step 4: Simplify right side
    13,851,502.20x = 152,381,680,362,849.91
  5. Step 5: Solve for x
    x = 152,381,680,362,849.91/13,851,502.20
  6. Step 6: Final answer
    x = 11,001,094.19

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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.