Home / 79,181,868.70-118,772,803.05-66,427,284.70

Finding the Fourth Proportional to 79,181,868.70, 118,772,803.05 and 66,427,284.70

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Solution

The fourth proportional to 79,181,868.70, 118,772,803.05 and 66,427,284.70 is: 99,640,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,181,868.70 : 118,772,803.05 = 66,427,284.70 : x
  2. Step 2: Convert to fraction form
    79,181,868.70/118,772,803.05 = 66,427,284.70/x
  3. Step 3: Cross multiply
    79,181,868.70x = 118,772,803.05 × 66,427,284.70
  4. Step 4: Simplify right side
    79,181,868.70x = 7,889,754,802,819,378
  5. Step 5: Solve for x
    x = 7,889,754,802,819,378/79,181,868.70
  6. Step 6: Final answer
    x = 99,640,927.05

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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.