Finding the Fourth Proportional to 88,138,973.18, 121,503,590.84 and 61,594,915.97
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Solution
The fourth proportional to 88,138,973.18, 121,503,590.84 and 61,594,915.97 is: 84,911,398.41
Step by Step Solution
- Step 1: Write the proportion equation
88,138,973.18 : 121,503,590.84 = 61,594,915.97 : x - Step 2: Convert to fraction form
88,138,973.18/121,503,590.84 = 61,594,915.97/x - Step 3: Cross multiply
88,138,973.18x = 121,503,590.84 × 61,594,915.97 - Step 4: Simplify right side
88,138,973.18x = 7,484,003,466,927,569 - Step 5: Solve for x
x = 7,484,003,466,927,569/88,138,973.18 - Step 6: Final answer
x = 84,911,398.41
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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.