Finding the Fourth Proportional to 421,539,328.02, 581,785,121.16 and 242,889,000.62
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Solution
The fourth proportional to 421,539,328.02, 581,785,121.16 and 242,889,000.62 is: 335,221,881.47
Step by Step Solution
- Step 1: Write the proportion equation
421,539,328.02 : 581,785,121.16 = 242,889,000.62 : x - Step 2: Convert to fraction form
421,539,328.02/581,785,121.16 = 242,889,000.62/x - Step 3: Cross multiply
421,539,328.02x = 581,785,121.16 × 242,889,000.62 - Step 4: Simplify right side
421,539,328.02x = 141,309,206,651,229,088 - Step 5: Solve for x
x = 141,309,206,651,229,088/421,539,328.02 - Step 6: Final answer
x = 335,221,881.47
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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.