Home / 2,129,036.36-2,938,044.24-1,211,263.16

Finding the Fourth Proportional to 2,129,036.36, 2,938,044.24 and 1,211,263.16

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Solution

The fourth proportional to 2,129,036.36, 2,938,044.24 and 1,211,263.16 is: 1,671,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,036.36 : 2,938,044.24 = 1,211,263.16 : x
  2. Step 2: Convert to fraction form
    2,129,036.36/2,938,044.24 = 1,211,263.16/x
  3. Step 3: Cross multiply
    2,129,036.36x = 2,938,044.24 × 1,211,263.16
  4. Step 4: Simplify right side
    2,129,036.36x = 3,558,744,750,362.20
  5. Step 5: Solve for x
    x = 3,558,744,750,362.20/2,129,036.36
  6. Step 6: Final answer
    x = 1,671,528.40

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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.