Home / 12,938,656.40-19,407,984.60-10,419,232.40

Finding the Fourth Proportional to 12,938,656.40, 19,407,984.60 and 10,419,232.40

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Solution

The fourth proportional to 12,938,656.40, 19,407,984.60 and 10,419,232.40 is: 15,628,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,656.40 : 19,407,984.60 = 10,419,232.40 : x
  2. Step 2: Convert to fraction form
    12,938,656.40/19,407,984.60 = 10,419,232.40/x
  3. Step 3: Cross multiply
    12,938,656.40x = 19,407,984.60 × 10,419,232.40
  4. Step 4: Simplify right side
    12,938,656.40x = 202,216,301,963,021.06
  5. Step 5: Solve for x
    x = 202,216,301,963,021.06/12,938,656.40
  6. Step 6: Final answer
    x = 15,628,848.60

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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.