Home / 2,153,858.46-2,972,386.96-1,187,051.02

Finding the Fourth Proportional to 2,153,858.46, 2,972,386.96 and 1,187,051.02

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Solution

The fourth proportional to 2,153,858.46, 2,972,386.96 and 1,187,051.02 is: 1,638,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,858.46 : 2,972,386.96 = 1,187,051.02 : x
  2. Step 2: Convert to fraction form
    2,153,858.46/2,972,386.96 = 1,187,051.02/x
  3. Step 3: Cross multiply
    2,153,858.46x = 2,972,386.96 × 1,187,051.02
  4. Step 4: Simplify right side
    2,153,858.46x = 3,528,374,972,702.70
  5. Step 5: Solve for x
    x = 3,528,374,972,702.70/2,153,858.46
  6. Step 6: Final answer
    x = 1,638,164.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.