Home / 154,342,968.80-212,993,501.38-83,778,533.18

Finding the Fourth Proportional to 154,342,968.80, 212,993,501.38 and 83,778,533.18

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Solution

The fourth proportional to 154,342,968.80, 212,993,501.38 and 83,778,533.18 is: 115,614,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,342,968.80 : 212,993,501.38 = 83,778,533.18 : x
  2. Step 2: Convert to fraction form
    154,342,968.80/212,993,501.38 = 83,778,533.18/x
  3. Step 3: Cross multiply
    154,342,968.80x = 212,993,501.38 × 83,778,533.18
  4. Step 4: Simplify right side
    154,342,968.80x = 17,844,283,122,488,706
  5. Step 5: Solve for x
    x = 17,844,283,122,488,706/154,342,968.80
  6. Step 6: Final answer
    x = 115,614,486.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.