Finding the Fourth Proportional to 40,658,765.60, 60,975,215.29 and 13,358,765.99
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Solution
The fourth proportional to 40,658,765.60, 60,975,215.29 and 13,358,765.99 is: 20,033,899.70
Step by Step Solution
- Step 1: Write the proportion equation
40,658,765.60 : 60,975,215.29 = 13,358,765.99 : x - Step 2: Convert to fraction form
40,658,765.60/60,975,215.29 = 13,358,765.99/x - Step 3: Cross multiply
40,658,765.60x = 60,975,215.29 × 13,358,765.99 - Step 4: Simplify right side
40,658,765.60x = 814,553,631,999,886.75 - Step 5: Solve for x
x = 814,553,631,999,886.75/40,658,765.60 - Step 6: Final answer
x = 20,033,899.70
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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.