Finding the Fourth Proportional to 539,430,051.26, 744,413,470.98 and 291,911,405.60
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Solution
The fourth proportional to 539,430,051.26, 744,413,470.98 and 291,911,405.60 is: 402,837,739.86
Step by Step Solution
- Step 1: Write the proportion equation
539,430,051.26 : 744,413,470.98 = 291,911,405.60 : x - Step 2: Convert to fraction form
539,430,051.26/744,413,470.98 = 291,911,405.60/x - Step 3: Cross multiply
539,430,051.26x = 744,413,470.98 × 291,911,405.60 - Step 4: Simplify right side
539,430,051.26x = 217,302,782,661,346,624 - Step 5: Solve for x
x = 217,302,782,661,346,624/539,430,051.26 - Step 6: Final answer
x = 402,837,739.86
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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.