Home / 142,032,139.20-213,048,208.80-136,458,302.40

Finding the Fourth Proportional to 142,032,139.20, 213,048,208.80 and 136,458,302.40

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Solution

The fourth proportional to 142,032,139.20, 213,048,208.80 and 136,458,302.40 is: 204,687,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,032,139.20 : 213,048,208.80 = 136,458,302.40 : x
  2. Step 2: Convert to fraction form
    142,032,139.20/213,048,208.80 = 136,458,302.40/x
  3. Step 3: Cross multiply
    142,032,139.20x = 213,048,208.80 × 136,458,302.40
  4. Step 4: Simplify right side
    142,032,139.20x = 29,072,196,902,208,744
  5. Step 5: Solve for x
    x = 29,072,196,902,208,744/142,032,139.20
  6. Step 6: Final answer
    x = 204,687,453.60

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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.