Finding the Fourth Proportional to 287,301,831.62, 431,013,272.28 and 93,198,090.74
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Solution
The fourth proportional to 287,301,831.62, 431,013,272.28 and 93,198,090.74 is: 139,816,769.82
Step by Step Solution
- Step 1: Write the proportion equation
287,301,831.62 : 431,013,272.28 = 93,198,090.74 : x - Step 2: Convert to fraction form
287,301,831.62/431,013,272.28 = 93,198,090.74/x - Step 3: Cross multiply
287,301,831.62x = 431,013,272.28 × 93,198,090.74 - Step 4: Simplify right side
287,301,831.62x = 40,169,614,060,095,760 - Step 5: Solve for x
x = 40,169,614,060,095,760/287,301,831.62 - Step 6: Final answer
x = 139,816,769.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.