Home / 1,268,782,553.40-1,903,131,952.02-521,772,473.40

Finding the Fourth Proportional to 1,268,782,553.40, 1,903,131,952.02 and 521,772,473.40

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Solution

The fourth proportional to 1,268,782,553.40, 1,903,131,952.02 and 521,772,473.40 is: 782,641,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,782,553.40 : 1,903,131,952.02 = 521,772,473.40 : x
  2. Step 2: Convert to fraction form
    1,268,782,553.40/1,903,131,952.02 = 521,772,473.40/x
  3. Step 3: Cross multiply
    1,268,782,553.40x = 1,903,131,952.02 × 521,772,473.40
  4. Step 4: Simplify right side
    1,268,782,553.40x = 993,001,865,812,045,440
  5. Step 5: Solve for x
    x = 993,001,865,812,045,440/1,268,782,553.40
  6. Step 6: Final answer
    x = 782,641,488.21

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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.