Finding the Fourth Proportional to 61,205,645.70, 91,808,468.55 and 57,698,135.10
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Solution
The fourth proportional to 61,205,645.70, 91,808,468.55 and 57,698,135.10 is: 86,547,202.65
Step by Step Solution
- Step 1: Write the proportion equation
61,205,645.70 : 91,808,468.55 = 57,698,135.10 : x - Step 2: Convert to fraction form
61,205,645.70/91,808,468.55 = 57,698,135.10/x - Step 3: Cross multiply
61,205,645.70x = 91,808,468.55 × 57,698,135.10 - Step 4: Simplify right side
61,205,645.70x = 5,297,177,421,722,001 - Step 5: Solve for x
x = 5,297,177,421,722,001/61,205,645.70 - Step 6: Final answer
x = 86,547,202.65
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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.