Home / 290,316,530.40-435,474,795.60-199,617,266.40

Finding the Fourth Proportional to 290,316,530.40, 435,474,795.60 and 199,617,266.40

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Solution

The fourth proportional to 290,316,530.40, 435,474,795.60 and 199,617,266.40 is: 299,425,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,316,530.40 : 435,474,795.60 = 199,617,266.40 : x
  2. Step 2: Convert to fraction form
    290,316,530.40/435,474,795.60 = 199,617,266.40/x
  3. Step 3: Cross multiply
    290,316,530.40x = 435,474,795.60 × 199,617,266.40
  4. Step 4: Simplify right side
    290,316,530.40x = 86,928,288,283,770,752
  5. Step 5: Solve for x
    x = 86,928,288,283,770,752/290,316,530.40
  6. Step 6: Final answer
    x = 299,425,899.60

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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.