Finding the Fourth Proportional to 13,206,887.70, 19,810,331.55 and 4,688,085.30
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Solution
The fourth proportional to 13,206,887.70, 19,810,331.55 and 4,688,085.30 is: 7,032,127.95
Step by Step Solution
- Step 1: Write the proportion equation
13,206,887.70 : 19,810,331.55 = 4,688,085.30 : x - Step 2: Convert to fraction form
13,206,887.70/19,810,331.55 = 4,688,085.30/x - Step 3: Cross multiply
13,206,887.70x = 19,810,331.55 × 4,688,085.30 - Step 4: Simplify right side
13,206,887.70x = 92,872,524,127,681.22 - Step 5: Solve for x
x = 92,872,524,127,681.22/13,206,887.70 - Step 6: Final answer
x = 7,032,127.95
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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.