Finding the Fourth Proportional to 9,970,397.12, 13,759,157.76 and 5,386,722.14
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Solution
The fourth proportional to 9,970,397.12, 13,759,157.76 and 5,386,722.14 is: 7,433,681.81
Step by Step Solution
- Step 1: Write the proportion equation
9,970,397.12 : 13,759,157.76 = 5,386,722.14 : x - Step 2: Convert to fraction form
9,970,397.12/13,759,157.76 = 5,386,722.14/x - Step 3: Cross multiply
9,970,397.12x = 13,759,157.76 × 5,386,722.14 - Step 4: Simplify right side
9,970,397.12x = 74,116,759,733,544.80 - Step 5: Solve for x
x = 74,116,759,733,544.80/9,970,397.12 - Step 6: Final answer
x = 7,433,681.81
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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.