Finding the Fourth Proportional to 157,761,909.84, 237,719,706 and 129,638,052.12
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Solution
The fourth proportional to 157,761,909.84, 237,719,706 and 129,638,052.12 is: 195,341,953.38
Step by Step Solution
- Step 1: Write the proportion equation
157,761,909.84 : 237,719,706 = 129,638,052.12 : x - Step 2: Convert to fraction form
157,761,909.84/237,719,706 = 129,638,052.12/x - Step 3: Cross multiply
157,761,909.84x = 237,719,706 × 129,638,052.12 - Step 4: Simplify right side
157,761,909.84x = 30,817,519,636,379,076 - Step 5: Solve for x
x = 30,817,519,636,379,076/157,761,909.84 - Step 6: Final answer
x = 195,341,953.38
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.