Finding the Fourth Proportional to 221,805,461.99, 306,070,996.17 and 122,684,076.02
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Solution
The fourth proportional to 221,805,461.99, 306,070,996.17 and 122,684,076.02 is: 169,292,663.15
Step by Step Solution
- Step 1: Write the proportion equation
221,805,461.99 : 306,070,996.17 = 122,684,076.02 : x - Step 2: Convert to fraction form
221,805,461.99/306,070,996.17 = 122,684,076.02/x - Step 3: Cross multiply
221,805,461.99x = 306,070,996.17 × 122,684,076.02 - Step 4: Simplify right side
221,805,461.99x = 37,550,037,361,637,408 - Step 5: Solve for x
x = 37,550,037,361,637,408/221,805,461.99 - Step 6: Final answer
x = 169,292,663.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.