Home / 1,292,197,901.80-1,938,296,852.70-776,219,866.60

Finding the Fourth Proportional to 1,292,197,901.80, 1,938,296,852.70 and 776,219,866.60

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Solution

The fourth proportional to 1,292,197,901.80, 1,938,296,852.70 and 776,219,866.60 is: 1,164,329,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,197,901.80 : 1,938,296,852.70 = 776,219,866.60 : x
  2. Step 2: Convert to fraction form
    1,292,197,901.80/1,938,296,852.70 = 776,219,866.60/x
  3. Step 3: Cross multiply
    1,292,197,901.80x = 1,938,296,852.70 × 776,219,866.60
  4. Step 4: Simplify right side
    1,292,197,901.80x = 1,504,544,524,433,993,984
  5. Step 5: Solve for x
    x = 1,504,544,524,433,993,984/1,292,197,901.80
  6. Step 6: Final answer
    x = 1,164,329,799.90

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Double scale
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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.