Finding the Fourth Proportional to 910,108,719.28, 1,255,950,013.08 and 492,421,004.68
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Solution
The fourth proportional to 910,108,719.28, 1,255,950,013.08 and 492,421,004.68 is: 679,540,975.89
Step by Step Solution
- Step 1: Write the proportion equation
910,108,719.28 : 1,255,950,013.08 = 492,421,004.68 : x - Step 2: Convert to fraction form
910,108,719.28/1,255,950,013.08 = 492,421,004.68/x - Step 3: Cross multiply
910,108,719.28x = 1,255,950,013.08 × 492,421,004.68 - Step 4: Simplify right side
910,108,719.28x = 618,456,167,268,712,704 - Step 5: Solve for x
x = 618,456,167,268,712,704/910,108,719.28 - Step 6: Final answer
x = 679,540,975.89
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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.