Finding the Fourth Proportional to 85,280,430.52, 117,686,994.20 and 46,122,207.06
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Solution
The fourth proportional to 85,280,430.52, 117,686,994.20 and 46,122,207.06 is: 63,648,645.79
Step by Step Solution
- Step 1: Write the proportion equation
85,280,430.52 : 117,686,994.20 = 46,122,207.06 : x - Step 2: Convert to fraction form
85,280,430.52/117,686,994.20 = 46,122,207.06/x - Step 3: Cross multiply
85,280,430.52x = 117,686,994.20 × 46,122,207.06 - Step 4: Simplify right side
85,280,430.52x = 5,427,983,915,404,300 - Step 5: Solve for x
x = 5,427,983,915,404,300/85,280,430.52 - Step 6: Final answer
x = 63,648,645.79
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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.