Finding the Fourth Proportional to 101,440,220.93, 139,975,695.05 and 56,788,638.06
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Solution
The fourth proportional to 101,440,220.93, 139,975,695.05 and 56,788,638.06 is: 78,361,709.10
Step by Step Solution
- Step 1: Write the proportion equation
101,440,220.93 : 139,975,695.05 = 56,788,638.06 : x - Step 2: Convert to fraction form
101,440,220.93/139,975,695.05 = 56,788,638.06/x - Step 3: Cross multiply
101,440,220.93x = 139,975,695.05 × 56,788,638.06 - Step 4: Simplify right side
101,440,220.93x = 7,949,029,083,391,385 - Step 5: Solve for x
x = 7,949,029,083,391,385/101,440,220.93 - Step 6: Final answer
x = 78,361,709.10
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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.