Finding the Fourth Proportional to 424,209,963.72, 636,406,533.27 and 129,128,158.08
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Solution
The fourth proportional to 424,209,963.72, 636,406,533.27 and 129,128,158.08 is: 193,720,116.12
Step by Step Solution
- Step 1: Write the proportion equation
424,209,963.72 : 636,406,533.27 = 129,128,158.08 : x - Step 2: Convert to fraction form
424,209,963.72/636,406,533.27 = 129,128,158.08/x - Step 3: Cross multiply
424,209,963.72x = 636,406,533.27 × 129,128,158.08 - Step 4: Simplify right side
424,209,963.72x = 82,178,003,431,233,328 - Step 5: Solve for x
x = 82,178,003,431,233,328/424,209,963.72 - Step 6: Final answer
x = 193,720,116.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.