Finding the Fourth Proportional to 128,288,533,825.04, 177,038,351,993.42 and 69,627,356,707.62
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Solution
The fourth proportional to 128,288,533,825.04, 177,038,351,993.42 and 69,627,356,707.62 is: 96,085,847,406.96
Step by Step Solution
- Step 1: Write the proportion equation
128,288,533,825.04 : 177,038,351,993.42 = 69,627,356,707.62 : x - Step 2: Convert to fraction form
128,288,533,825.04/177,038,351,993.42 = 69,627,356,707.62/x - Step 3: Cross multiply
128,288,533,825.04x = 177,038,351,993.42 × 69,627,356,707.62 - Step 4: Simplify right side
128,288,533,825.04x = 12,326,712,485,175,042,768,896 - Step 5: Solve for x
x = 12,326,712,485,175,042,768,896/128,288,533,825.04 - Step 6: Final answer
x = 96,085,847,406.96
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1.5x scale
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.