Finding the Fourth Proportional to 98,609,867.28, 136,125,202.05 and 58,931,395.74
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Solution
The fourth proportional to 98,609,867.28, 136,125,202.05 and 58,931,395.74 is: 81,351,373.58
Step by Step Solution
- Step 1: Write the proportion equation
98,609,867.28 : 136,125,202.05 = 58,931,395.74 : x - Step 2: Convert to fraction form
98,609,867.28/136,125,202.05 = 58,931,395.74/x - Step 3: Cross multiply
98,609,867.28x = 136,125,202.05 × 58,931,395.74 - Step 4: Simplify right side
98,609,867.28x = 8,022,048,152,196,010 - Step 5: Solve for x
x = 8,022,048,152,196,010/98,609,867.28 - Step 6: Final answer
x = 81,351,373.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.