Finding the Fourth Proportional to 485,775,038.36, 670,311,943.56 and 274,069,526.96
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Solution
The fourth proportional to 485,775,038.36, 670,311,943.56 and 274,069,526.96 is: 378,183,444.56
Step by Step Solution
- Step 1: Write the proportion equation
485,775,038.36 : 670,311,943.56 = 274,069,526.96 : x - Step 2: Convert to fraction form
485,775,038.36/670,311,943.56 = 274,069,526.96/x - Step 3: Cross multiply
485,775,038.36x = 670,311,943.56 × 274,069,526.96 - Step 4: Simplify right side
485,775,038.36x = 183,712,077,288,803,168 - Step 5: Solve for x
x = 183,712,077,288,803,168/485,775,038.36 - Step 6: Final answer
x = 378,183,444.56
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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.