Finding the Fourth Proportional to 47,356,921.68, 65,316,540.91 and 40,752,641.63
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Solution
The fourth proportional to 47,356,921.68, 65,316,540.91 and 40,752,641.63 is: 56,207,656.45
Step by Step Solution
- Step 1: Write the proportion equation
47,356,921.68 : 65,316,540.91 = 40,752,641.63 : x - Step 2: Convert to fraction form
47,356,921.68/65,316,540.91 = 40,752,641.63/x - Step 3: Cross multiply
47,356,921.68x = 65,316,540.91 × 40,752,641.63 - Step 4: Simplify right side
47,356,921.68x = 2,661,821,584,216,464 - Step 5: Solve for x
x = 2,661,821,584,216,464/47,356,921.68 - Step 6: Final answer
x = 56,207,656.45
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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.