Finding the Fourth Proportional to 55,423,998.68, 83,140,430.34 and 19,017,738.68
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Solution
The fourth proportional to 55,423,998.68, 83,140,430.34 and 19,017,738.68 is: 28,528,128.89
Step by Step Solution
- Step 1: Write the proportion equation
55,423,998.68 : 83,140,430.34 = 19,017,738.68 : x - Step 2: Convert to fraction form
55,423,998.68/83,140,430.34 = 19,017,738.68/x - Step 3: Cross multiply
55,423,998.68x = 83,140,430.34 × 19,017,738.68 - Step 4: Simplify right side
55,423,998.68x = 1,581,142,977,948,863.50 - Step 5: Solve for x
x = 1,581,142,977,948,863.50/55,423,998.68 - Step 6: Final answer
x = 28,528,128.89
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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.