Home / 1,206,290,541.55-1,808,399,515.69-419,241,948.66

Finding the Fourth Proportional to 1,206,290,541.55, 1,808,399,515.69 and 419,241,948.66

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Solution

The fourth proportional to 1,206,290,541.55, 1,808,399,515.69 and 419,241,948.66 is: 628,502,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,290,541.55 : 1,808,399,515.69 = 419,241,948.66 : x
  2. Step 2: Convert to fraction form
    1,206,290,541.55/1,808,399,515.69 = 419,241,948.66/x
  3. Step 3: Cross multiply
    1,206,290,541.55x = 1,808,399,515.69 × 419,241,948.66
  4. Step 4: Simplify right side
    1,206,290,541.55x = 758,156,936,902,537,600
  5. Step 5: Solve for x
    x = 758,156,936,902,537,600/1,206,290,541.55
  6. Step 6: Final answer
    x = 628,502,761.80

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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.