Finding the Fourth Proportional to 1,187,334,416.52, 1,781,015,336.64 and 358,295,241.96
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Solution
The fourth proportional to 1,187,334,416.52, 1,781,015,336.64 and 358,295,241.96 is: 537,447,000.69
Step by Step Solution
- Step 1: Write the proportion equation
1,187,334,416.52 : 1,781,015,336.64 = 358,295,241.96 : x - Step 2: Convert to fraction form
1,187,334,416.52/1,781,015,336.64 = 358,295,241.96/x - Step 3: Cross multiply
1,187,334,416.52x = 1,781,015,336.64 × 358,295,241.96 - Step 4: Simplify right side
1,187,334,416.52x = 638,129,320,975,899,648 - Step 5: Solve for x
x = 638,129,320,975,899,648/1,187,334,416.52 - Step 6: Final answer
x = 537,447,000.69
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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.