Home / 816,729,136.20-1,225,572,001.20-299,211,890.40

Finding the Fourth Proportional to 816,729,136.20, 1,225,572,001.20 and 299,211,890.40

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Solution

The fourth proportional to 816,729,136.20, 1,225,572,001.20 and 299,211,890.40 is: 448,993,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,729,136.20 : 1,225,572,001.20 = 299,211,890.40 : x
  2. Step 2: Convert to fraction form
    816,729,136.20/1,225,572,001.20 = 299,211,890.40/x
  3. Step 3: Cross multiply
    816,729,136.20x = 1,225,572,001.20 × 299,211,890.40
  4. Step 4: Simplify right side
    816,729,136.20x = 366,705,715,300,363,072
  5. Step 5: Solve for x
    x = 366,705,715,300,363,072/816,729,136.20
  6. Step 6: Final answer
    x = 448,993,061.53

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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.