Finding the Fourth Proportional to 87,918,594.67, 121,216,159.15 and 62,830,668.79
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Solution
The fourth proportional to 87,918,594.67, 121,216,159.15 and 62,830,668.79 is: 86,626,638.84
Step by Step Solution
- Step 1: Write the proportion equation
87,918,594.67 : 121,216,159.15 = 62,830,668.79 : x - Step 2: Convert to fraction form
87,918,594.67/121,216,159.15 = 62,830,668.79/x - Step 3: Cross multiply
87,918,594.67x = 121,216,159.15 × 62,830,668.79 - Step 4: Simplify right side
87,918,594.67x = 7,616,092,347,549,578 - Step 5: Solve for x
x = 7,616,092,347,549,578/87,918,594.67 - Step 6: Final answer
x = 86,626,638.84
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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.