Home / 19,419,314.40-29,128,971.60-15,640,178.40

Finding the Fourth Proportional to 19,419,314.40, 29,128,971.60 and 15,640,178.40

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Solution

The fourth proportional to 19,419,314.40, 29,128,971.60 and 15,640,178.40 is: 23,460,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419,314.40 : 29,128,971.60 = 15,640,178.40 : x
  2. Step 2: Convert to fraction form
    19,419,314.40/29,128,971.60 = 15,640,178.40/x
  3. Step 3: Cross multiply
    19,419,314.40x = 29,128,971.60 × 15,640,178.40
  4. Step 4: Simplify right side
    19,419,314.40x = 455,582,312,432,533.50
  5. Step 5: Solve for x
    x = 455,582,312,432,533.50/19,419,314.40
  6. Step 6: Final answer
    x = 23,460,267.60

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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.