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Finding the Fourth Proportional to 358,709,205.60, 538,189,779.60 and 154,299,938.40

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Solution

The fourth proportional to 358,709,205.60, 538,189,779.60 and 154,299,938.40 is: 231,504,094.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,709,205.60 : 538,189,779.60 = 154,299,938.40 : x
  2. Step 2: Convert to fraction form
    358,709,205.60/538,189,779.60 = 154,299,938.40/x
  3. Step 3: Cross multiply
    358,709,205.60x = 538,189,779.60 × 154,299,938.40
  4. Step 4: Simplify right side
    358,709,205.60x = 83,042,649,839,789,584
  5. Step 5: Solve for x
    x = 83,042,649,839,789,584/358,709,205.60
  6. Step 6: Final answer
    x = 231,504,094.52

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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.