Finding the Fourth Proportional to 129,064,911, 193,724,913.12 and 68,480,637
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Solution
The fourth proportional to 129,064,911, 193,724,913.12 and 68,480,637 is: 102,788,630.55
Step by Step Solution
- Step 1: Write the proportion equation
129,064,911 : 193,724,913.12 = 68,480,637 : x - Step 2: Convert to fraction form
129,064,911/193,724,913.12 = 68,480,637/x - Step 3: Cross multiply
129,064,911x = 193,724,913.12 × 68,480,637 - Step 4: Simplify right side
129,064,911x = 13,266,405,453,227,258 - Step 5: Solve for x
x = 13,266,405,453,227,258/129,064,911 - Step 6: Final answer
x = 102,788,630.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.