Finding the Fourth Proportional to 985,185,614.54, 1,359,555,260.73 and 556,113,237.95
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Solution
The fourth proportional to 985,185,614.54, 1,359,555,260.73 and 556,113,237.95 is: 767,435,767.49
Step by Step Solution
- Step 1: Write the proportion equation
985,185,614.54 : 1,359,555,260.73 = 556,113,237.95 : x - Step 2: Convert to fraction form
985,185,614.54/1,359,555,260.73 = 556,113,237.95/x - Step 3: Cross multiply
985,185,614.54x = 1,359,555,260.73 × 556,113,237.95 - Step 4: Simplify right side
985,185,614.54x = 756,066,678,216,516,864 - Step 5: Solve for x
x = 756,066,678,216,516,864/985,185,614.54 - Step 6: Final answer
x = 767,435,767.49
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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.