Finding the Fourth Proportional to 157,788,409.30, 236,682,613.95 and 88,913,655.70
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Solution
The fourth proportional to 157,788,409.30, 236,682,613.95 and 88,913,655.70 is: 133,370,483.55
Step by Step Solution
- Step 1: Write the proportion equation
157,788,409.30 : 236,682,613.95 = 88,913,655.70 : x - Step 2: Convert to fraction form
157,788,409.30/236,682,613.95 = 88,913,655.70/x - Step 3: Cross multiply
157,788,409.30x = 236,682,613.95 × 88,913,655.70 - Step 4: Simplify right side
157,788,409.30x = 21,044,316,446,926,316 - Step 5: Solve for x
x = 21,044,316,446,926,316/157,788,409.30 - Step 6: Final answer
x = 133,370,483.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.