Finding the Fourth Proportional to 128,115,570.54, 176,799,658.05 and 69,378,337.02
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Solution
The fourth proportional to 128,115,570.54, 176,799,658.05 and 69,378,337.02 is: 95,742,197.53
Step by Step Solution
- Step 1: Write the proportion equation
128,115,570.54 : 176,799,658.05 = 69,378,337.02 : x - Step 2: Convert to fraction form
128,115,570.54/176,799,658.05 = 69,378,337.02/x - Step 3: Cross multiply
128,115,570.54x = 176,799,658.05 × 69,378,337.02 - Step 4: Simplify right side
128,115,570.54x = 12,266,066,261,213,656 - Step 5: Solve for x
x = 12,266,066,261,213,656/128,115,570.54 - Step 6: Final answer
x = 95,742,197.53
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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.