Finding the Fourth Proportional to 66,389,646.20, 91,624,243.02 and 40,282,115
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Solution
The fourth proportional to 66,389,646.20, 91,624,243.02 and 40,282,115 is: 55,593,281.56
Step by Step Solution
- Step 1: Write the proportion equation
66,389,646.20 : 91,624,243.02 = 40,282,115 : x - Step 2: Convert to fraction form
66,389,646.20/91,624,243.02 = 40,282,115/x - Step 3: Cross multiply
66,389,646.20x = 91,624,243.02 × 40,282,115 - Step 4: Simplify right side
66,389,646.20x = 3,690,818,294,119,587 - Step 5: Solve for x
x = 3,690,818,294,119,587/66,389,646.20 - Step 6: Final answer
x = 55,593,281.56
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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.