Finding the Fourth Proportional to 1,386,465,450.57, 1,913,527,675.44 and 877,875,435.54
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Solution
The fourth proportional to 1,386,465,450.57, 1,913,527,675.44 and 877,875,435.54 is: 1,211,598,125.87
Step by Step Solution
- Step 1: Write the proportion equation
1,386,465,450.57 : 1,913,527,675.44 = 877,875,435.54 : x - Step 2: Convert to fraction form
1,386,465,450.57/1,913,527,675.44 = 877,875,435.54/x - Step 3: Cross multiply
1,386,465,450.57x = 1,913,527,675.44 × 877,875,435.54 - Step 4: Simplify right side
1,386,465,450.57x = 1,679,838,941,494,733,824 - Step 5: Solve for x
x = 1,679,838,941,494,733,824/1,386,465,450.57 - Step 6: Final answer
x = 1,211,598,125.87
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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.