Finding the Fourth Proportional to 315,558,228.05, 473,337,346.18 and 85,527,312.70
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Solution
The fourth proportional to 315,558,228.05, 473,337,346.18 and 85,527,312.70 is: 128,290,970.16
Step by Step Solution
- Step 1: Write the proportion equation
315,558,228.05 : 473,337,346.18 = 85,527,312.70 : x - Step 2: Convert to fraction form
315,558,228.05/473,337,346.18 = 85,527,312.70/x - Step 3: Cross multiply
315,558,228.05x = 473,337,346.18 × 85,527,312.70 - Step 4: Simplify right side
315,558,228.05x = 40,483,271,219,325,016 - Step 5: Solve for x
x = 40,483,271,219,325,016/315,558,228.05 - Step 6: Final answer
x = 128,290,970.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.