Home / 119,232,000.40-178,848,000.60-86,731,430.80

Finding the Fourth Proportional to 119,232,000.40, 178,848,000.60 and 86,731,430.80

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Solution

The fourth proportional to 119,232,000.40, 178,848,000.60 and 86,731,430.80 is: 130,097,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,232,000.40 : 178,848,000.60 = 86,731,430.80 : x
  2. Step 2: Convert to fraction form
    119,232,000.40/178,848,000.60 = 86,731,430.80/x
  3. Step 3: Cross multiply
    119,232,000.40x = 178,848,000.60 × 86,731,430.80
  4. Step 4: Simplify right side
    119,232,000.40x = 15,511,742,987,757,258
  5. Step 5: Solve for x
    x = 15,511,742,987,757,258/119,232,000.40
  6. Step 6: Final answer
    x = 130,097,146.20

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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.