Finding the Fourth Proportional to 228,368,957.24, 315,095,145.02 and 129,249,702.53
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Solution
The fourth proportional to 228,368,957.24, 315,095,145.02 and 129,249,702.53 is: 178,334,018.14
Step by Step Solution
- Step 1: Write the proportion equation
228,368,957.24 : 315,095,145.02 = 129,249,702.53 : x - Step 2: Convert to fraction form
228,368,957.24/315,095,145.02 = 129,249,702.53/x - Step 3: Cross multiply
228,368,957.24x = 315,095,145.02 × 129,249,702.53 - Step 4: Simplify right side
228,368,957.24x = 40,725,953,762,623,696 - Step 5: Solve for x
x = 40,725,953,762,623,696/228,368,957.24 - Step 6: Final answer
x = 178,334,018.14
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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.