Finding the Fourth Proportional to 7,045,688,690.42, 9,723,088,831.17 and 4,148,966,774.66
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Solution
The fourth proportional to 7,045,688,690.42, 9,723,088,831.17 and 4,148,966,774.66 is: 5,725,596,784.09
Step by Step Solution
- Step 1: Write the proportion equation
7,045,688,690.42 : 9,723,088,831.17 = 4,148,966,774.66 : x - Step 2: Convert to fraction form
7,045,688,690.42/9,723,088,831.17 = 4,148,966,774.66/x - Step 3: Cross multiply
7,045,688,690.42x = 9,723,088,831.17 × 4,148,966,774.66 - Step 4: Simplify right side
7,045,688,690.42x = 40,340,772,507,543,453,696 - Step 5: Solve for x
x = 40,340,772,507,543,453,696/7,045,688,690.42 - Step 6: Final answer
x = 5,725,596,784.09
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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.