Finding the Fourth Proportional to 144,838,958.96, 199,881,551.50 and 78,763,321.74
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Solution
The fourth proportional to 144,838,958.96, 199,881,551.50 and 78,763,321.74 is: 108,695,443.99
Step by Step Solution
- Step 1: Write the proportion equation
144,838,958.96 : 199,881,551.50 = 78,763,321.74 : x - Step 2: Convert to fraction form
144,838,958.96/199,881,551.50 = 78,763,321.74/x - Step 3: Cross multiply
144,838,958.96x = 199,881,551.50 × 78,763,321.74 - Step 4: Simplify right side
144,838,958.96x = 15,743,334,950,684,878 - Step 5: Solve for x
x = 15,743,334,950,684,878/144,838,958.96 - Step 6: Final answer
x = 108,695,443.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.