Finding the Fourth Proportional to 5,299,281.68, 7,312,987.92 and 2,975,851.76
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Solution
The fourth proportional to 5,299,281.68, 7,312,987.92 and 2,975,851.76 is: 4,106,663.75
Step by Step Solution
- Step 1: Write the proportion equation
5,299,281.68 : 7,312,987.92 = 2,975,851.76 : x - Step 2: Convert to fraction form
5,299,281.68/7,312,987.92 = 2,975,851.76/x - Step 3: Cross multiply
5,299,281.68x = 7,312,987.92 × 2,975,851.76 - Step 4: Simplify right side
5,299,281.68x = 21,762,367,972,590.74 - Step 5: Solve for x
x = 21,762,367,972,590.74/5,299,281.68 - Step 6: Final answer
x = 4,106,663.75
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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.