Home / 1,389,919,559.47-2,092,393,603.73-1,266,217,200.65

Finding the Fourth Proportional to 1,389,919,559.47, 2,092,393,603.73 and 1,266,217,200.65

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Solution

The fourth proportional to 1,389,919,559.47, 2,092,393,603.73 and 1,266,217,200.65 is: 1,906,171,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,919,559.47 : 2,092,393,603.73 = 1,266,217,200.65 : x
  2. Step 2: Convert to fraction form
    1,389,919,559.47/2,092,393,603.73 = 1,266,217,200.65/x
  3. Step 3: Cross multiply
    1,389,919,559.47x = 2,092,393,603.73 × 1,266,217,200.65
  4. Step 4: Simplify right side
    1,389,919,559.47x = 2,649,424,771,581,362,688
  5. Step 5: Solve for x
    x = 2,649,424,771,581,362,688/1,389,919,559.47
  6. Step 6: Final answer
    x = 1,906,171,298.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.