Finding the Fourth Proportional to 2,130,403,680, 2,940,047,873.94 and 1,190,606,294.28
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Solution
The fourth proportional to 2,130,403,680, 2,940,047,873.94 and 1,190,606,294.28 is: 1,643,087,428.48
Step by Step Solution
- Step 1: Write the proportion equation
2,130,403,680 : 2,940,047,873.94 = 1,190,606,294.28 : x - Step 2: Convert to fraction form
2,130,403,680/2,940,047,873.94 = 1,190,606,294.28/x - Step 3: Cross multiply
2,130,403,680x = 2,940,047,873.94 × 1,190,606,294.28 - Step 4: Simplify right side
2,130,403,680x = 3,500,439,504,197,495,808 - Step 5: Solve for x
x = 3,500,439,504,197,495,808/2,130,403,680 - Step 6: Final answer
x = 1,643,087,428.48
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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.