Home / 128,698,980.40-193,048,470.60-106,024,164.40

Finding the Fourth Proportional to 128,698,980.40, 193,048,470.60 and 106,024,164.40

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Solution

The fourth proportional to 128,698,980.40, 193,048,470.60 and 106,024,164.40 is: 159,036,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,698,980.40 : 193,048,470.60 = 106,024,164.40 : x
  2. Step 2: Convert to fraction form
    128,698,980.40/193,048,470.60 = 106,024,164.40/x
  3. Step 3: Cross multiply
    128,698,980.40x = 193,048,470.60 × 106,024,164.40
  4. Step 4: Simplify right side
    128,698,980.40x = 20,467,802,784,062,968
  5. Step 5: Solve for x
    x = 20,467,802,784,062,968/128,698,980.40
  6. Step 6: Final answer
    x = 159,036,246.60

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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.