Home / 111,020,959.81-166,627,099.09-76,966,220.53

Finding the Fourth Proportional to 111,020,959.81, 166,627,099.09 and 76,966,220.53

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Solution

The fourth proportional to 111,020,959.81, 166,627,099.09 and 76,966,220.53 is: 115,515,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,020,959.81 : 166,627,099.09 = 76,966,220.53 : x
  2. Step 2: Convert to fraction form
    111,020,959.81/166,627,099.09 = 76,966,220.53/x
  3. Step 3: Cross multiply
    111,020,959.81x = 166,627,099.09 × 76,966,220.53
  4. Step 4: Simplify right side
    111,020,959.81x = 12,824,658,054,779,124
  5. Step 5: Solve for x
    x = 12,824,658,054,779,124/111,020,959.81
  6. Step 6: Final answer
    x = 115,515,647.47

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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.