Finding the Fourth Proportional to 260,553,991.84, 390,843,557.02 and 85,673,153.96
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Solution
The fourth proportional to 260,553,991.84, 390,843,557.02 and 85,673,153.96 is: 128,513,863.86
Step by Step Solution
- Step 1: Write the proportion equation
260,553,991.84 : 390,843,557.02 = 85,673,153.96 : x - Step 2: Convert to fraction form
260,553,991.84/390,843,557.02 = 85,673,153.96/x - Step 3: Cross multiply
260,553,991.84x = 390,843,557.02 × 85,673,153.96 - Step 4: Simplify right side
260,553,991.84x = 33,484,800,234,848,496 - Step 5: Solve for x
x = 33,484,800,234,848,496/260,553,991.84 - Step 6: Final answer
x = 128,513,863.86
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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.