Finding the Fourth Proportional to 122,804,103.16, 169,484,523.09 and 69,893,675.91
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Solution
The fourth proportional to 122,804,103.16, 169,484,523.09 and 69,893,675.91 is: 96,461,730.70
Step by Step Solution
- Step 1: Write the proportion equation
122,804,103.16 : 169,484,523.09 = 69,893,675.91 : x - Step 2: Convert to fraction form
122,804,103.16/169,484,523.09 = 69,893,675.91/x - Step 3: Cross multiply
122,804,103.16x = 169,484,523.09 × 69,893,675.91 - Step 4: Simplify right side
122,804,103.16x = 11,845,896,328,351,270 - Step 5: Solve for x
x = 11,845,896,328,351,270/122,804,103.16 - Step 6: Final answer
x = 96,461,730.70
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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.