Finding the Fourth Proportional to 40,947,201,378.40, 61,420,802,067.60 and 19,974,838,907.20
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Solution
The fourth proportional to 40,947,201,378.40, 61,420,802,067.60 and 19,974,838,907.20 is: 29,962,258,360.80
Step by Step Solution
- Step 1: Write the proportion equation
40,947,201,378.40 : 61,420,802,067.60 = 19,974,838,907.20 : x - Step 2: Convert to fraction form
40,947,201,378.40/61,420,802,067.60 = 19,974,838,907.20/x - Step 3: Cross multiply
40,947,201,378.40x = 61,420,802,067.60 × 19,974,838,907.20 - Step 4: Simplify right side
40,947,201,378.40x = 1,226,870,626,851,326,787,584 - Step 5: Solve for x
x = 1,226,870,626,851,326,787,584/40,947,201,378.40 - Step 6: Final answer
x = 29,962,258,360.80
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1.5x scale
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.