Home / 1,918,111.60-2,878,722.60-1,855,903.60

Finding the Fourth Proportional to 1,918,111.60, 2,878,722.60 and 1,855,903.60

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Solution

The fourth proportional to 1,918,111.60, 2,878,722.60 and 1,855,903.60 is: 2,785,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,111.60 : 2,878,722.60 = 1,855,903.60 : x
  2. Step 2: Convert to fraction form
    1,918,111.60/2,878,722.60 = 1,855,903.60/x
  3. Step 3: Cross multiply
    1,918,111.60x = 2,878,722.60 × 1,855,903.60
  4. Step 4: Simplify right side
    1,918,111.60x = 5,342,631,636,741.36
  5. Step 5: Solve for x
    x = 5,342,631,636,741.36/1,918,111.60
  6. Step 6: Final answer
    x = 2,785,360.16

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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.