Finding the Fourth Proportional to 256,937,911.08, 385,421,725.00 and 72,689,952.93
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Solution
The fourth proportional to 256,937,911.08, 385,421,725.00 and 72,689,952.93 is: 109,039,132.96
Step by Step Solution
- Step 1: Write the proportion equation
256,937,911.08 : 385,421,725.00 = 72,689,952.93 : x - Step 2: Convert to fraction form
256,937,911.08/385,421,725.00 = 72,689,952.93/x - Step 3: Cross multiply
256,937,911.08x = 385,421,725.00 × 72,689,952.93 - Step 4: Simplify right side
256,937,911.08x = 28,016,287,047,094,936 - Step 5: Solve for x
x = 28,016,287,047,094,936/256,937,911.08 - Step 6: Final answer
x = 109,039,132.96
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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.