Finding the Fourth Proportional to 1,178,086,903.70, 1,625,764,837.65 and 649,439,276.18
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Solution
The fourth proportional to 1,178,086,903.70, 1,625,764,837.65 and 649,439,276.18 is: 896,228,908.14
Step by Step Solution
- Step 1: Write the proportion equation
1,178,086,903.70 : 1,625,764,837.65 = 649,439,276.18 : x - Step 2: Convert to fraction form
1,178,086,903.70/1,625,764,837.65 = 649,439,276.18/x - Step 3: Cross multiply
1,178,086,903.70x = 1,625,764,837.65 × 649,439,276.18 - Step 4: Simplify right side
1,178,086,903.70x = 1,055,835,539,402,311,168 - Step 5: Solve for x
x = 1,055,835,539,402,311,168/1,178,086,903.70 - Step 6: Final answer
x = 896,228,908.14
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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.