Finding the Fourth Proportional to 1,778,292,319.80, 2,454,046,285.56 and 974,392,072.32
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Solution
The fourth proportional to 1,778,292,319.80, 2,454,046,285.56 and 974,392,072.32 is: 1,344,662,640.18
Step by Step Solution
- Step 1: Write the proportion equation
1,778,292,319.80 : 2,454,046,285.56 = 974,392,072.32 : x - Step 2: Convert to fraction form
1,778,292,319.80/2,454,046,285.56 = 974,392,072.32/x - Step 3: Cross multiply
1,778,292,319.80x = 2,454,046,285.56 × 974,392,072.32 - Step 4: Simplify right side
1,778,292,319.80x = 2,391,203,245,756,006,912 - Step 5: Solve for x
x = 2,391,203,245,756,006,912/1,778,292,319.80 - Step 6: Final answer
x = 1,344,662,640.18
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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.