Home / 39,927,642.40-55,100,312.60-21,592,927.92

Finding the Fourth Proportional to 39,927,642.40, 55,100,312.60 and 21,592,927.92

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Solution

The fourth proportional to 39,927,642.40, 55,100,312.60 and 21,592,927.92 is: 29,798,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,927,642.40 : 55,100,312.60 = 21,592,927.92 : x
  2. Step 2: Convert to fraction form
    39,927,642.40/55,100,312.60 = 21,592,927.92/x
  3. Step 3: Cross multiply
    39,927,642.40x = 55,100,312.60 × 21,592,927.92
  4. Step 4: Simplify right side
    39,927,642.40x = 1,189,777,078,341,268
  5. Step 5: Solve for x
    x = 1,189,777,078,341,268/39,927,642.40
  6. Step 6: Final answer
    x = 29,798,330.35

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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.