Finding the Fourth Proportional to 79,829,557.09, 119,692,852.74 and 31,312,315.60
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Solution
The fourth proportional to 79,829,557.09, 119,692,852.74 and 31,312,315.60 is: 46,948,279.77
Step by Step Solution
- Step 1: Write the proportion equation
79,829,557.09 : 119,692,852.74 = 31,312,315.60 : x - Step 2: Convert to fraction form
79,829,557.09/119,692,852.74 = 31,312,315.60/x - Step 3: Cross multiply
79,829,557.09x = 119,692,852.74 × 31,312,315.60 - Step 4: Simplify right side
79,829,557.09x = 3,747,860,379,759,972.50 - Step 5: Solve for x
x = 3,747,860,379,759,972.50/79,829,557.09 - Step 6: Final answer
x = 46,948,279.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.