Home / 190,760,492.80-285,846,806.40-142,009,638.40

Finding the Fourth Proportional to 190,760,492.80, 285,846,806.40 and 142,009,638.40

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Solution

The fourth proportional to 190,760,492.80, 285,846,806.40 and 142,009,638.40 is: 212,795,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,760,492.80 : 285,846,806.40 = 142,009,638.40 : x
  2. Step 2: Convert to fraction form
    190,760,492.80/285,846,806.40 = 142,009,638.40/x
  3. Step 3: Cross multiply
    190,760,492.80x = 285,846,806.40 × 142,009,638.40
  4. Step 4: Simplify right side
    190,760,492.80x = 40,593,001,614,658,808
  5. Step 5: Solve for x
    x = 40,593,001,614,658,808/190,760,492.80
  6. Step 6: Final answer
    x = 212,795,642.42

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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.