Finding the Fourth Proportional to 972,872,847.58, 1,342,565,257.14 and 526,836,699.82
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Solution
The fourth proportional to 972,872,847.58, 1,342,565,257.14 and 526,836,699.82 is: 727,035,039.70
Step by Step Solution
- Step 1: Write the proportion equation
972,872,847.58 : 1,342,565,257.14 = 526,836,699.82 : x - Step 2: Convert to fraction form
972,872,847.58/1,342,565,257.14 = 526,836,699.82/x - Step 3: Cross multiply
972,872,847.58x = 1,342,565,257.14 × 526,836,699.82 - Step 4: Simplify right side
972,872,847.58x = 707,312,649,364,627,328 - Step 5: Solve for x
x = 707,312,649,364,627,328/972,872,847.58 - Step 6: Final answer
x = 727,035,039.70
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1.5x scale
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.