Finding the Fourth Proportional to 122,804,129.84, 169,484,559.78 and 69,893,701.90
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Solution
The fourth proportional to 122,804,129.84, 169,484,559.78 and 69,893,701.90 is: 96,461,766.50
Step by Step Solution
- Step 1: Write the proportion equation
122,804,129.84 : 169,484,559.78 = 69,893,701.90 : x - Step 2: Convert to fraction form
122,804,129.84/169,484,559.78 = 69,893,701.90/x - Step 3: Cross multiply
122,804,129.84x = 169,484,559.78 × 69,893,701.90 - Step 4: Simplify right side
122,804,129.84x = 11,845,903,297,916,050 - Step 5: Solve for x
x = 11,845,903,297,916,050/122,804,129.84 - Step 6: Final answer
x = 96,461,766.50
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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.