Finding the Fourth Proportional to 132,815,430.75, 198,814,537.35 and 86,657,911.23
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Solution
The fourth proportional to 132,815,430.75, 198,814,537.35 and 86,657,911.23 is: 129,720,262.41
Step by Step Solution
- Step 1: Write the proportion equation
132,815,430.75 : 198,814,537.35 = 86,657,911.23 : x - Step 2: Convert to fraction form
132,815,430.75/198,814,537.35 = 86,657,911.23/x - Step 3: Cross multiply
132,815,430.75x = 198,814,537.35 × 86,657,911.23 - Step 4: Simplify right side
132,815,430.75x = 17,228,852,528,909,820 - Step 5: Solve for x
x = 17,228,852,528,909,820/132,815,430.75 - Step 6: Final answer
x = 129,720,262.41
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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.