Finding the Fourth Proportional to 868,957,124.74, 1,304,015,247.98 and 316,259,399.23
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Solution
The fourth proportional to 868,957,124.74, 1,304,015,247.98 and 316,259,399.23 is: 474,600,031.66
Step by Step Solution
- Step 1: Write the proportion equation
868,957,124.74 : 1,304,015,247.98 = 316,259,399.23 : x - Step 2: Convert to fraction form
868,957,124.74/1,304,015,247.98 = 316,259,399.23/x - Step 3: Cross multiply
868,957,124.74x = 1,304,015,247.98 × 316,259,399.23 - Step 4: Simplify right side
868,957,124.74x = 412,407,078,909,243,072 - Step 5: Solve for x
x = 412,407,078,909,243,072/868,957,124.74 - Step 6: Final answer
x = 474,600,031.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.