Finding the Fourth Proportional to 987,538,184.06, 1,361,484,341.96 and 784,527,129.17
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Solution
The fourth proportional to 987,538,184.06, 1,361,484,341.96 and 784,527,129.17 is: 1,081,600,103.61
Step by Step Solution
- Step 1: Write the proportion equation
987,538,184.06 : 1,361,484,341.96 = 784,527,129.17 : x - Step 2: Convert to fraction form
987,538,184.06/1,361,484,341.96 = 784,527,129.17/x - Step 3: Cross multiply
987,538,184.06x = 1,361,484,341.96 × 784,527,129.17 - Step 4: Simplify right side
987,538,184.06x = 1,068,121,402,200,977,920 - Step 5: Solve for x
x = 1,068,121,402,200,977,920/987,538,184.06 - Step 6: Final answer
x = 1,081,600,103.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.