Home / 191,382,003.40-287,073,005.10-133,939,136.20

Finding the Fourth Proportional to 191,382,003.40, 287,073,005.10 and 133,939,136.20

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Solution

The fourth proportional to 191,382,003.40, 287,073,005.10 and 133,939,136.20 is: 200,908,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,382,003.40 : 287,073,005.10 = 133,939,136.20 : x
  2. Step 2: Convert to fraction form
    191,382,003.40/287,073,005.10 = 133,939,136.20/x
  3. Step 3: Cross multiply
    191,382,003.40x = 287,073,005.10 × 133,939,136.20
  4. Step 4: Simplify right side
    191,382,003.40x = 38,450,310,329,432,200
  5. Step 5: Solve for x
    x = 38,450,310,329,432,200/191,382,003.40
  6. Step 6: Final answer
    x = 200,908,704.30

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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.