Finding the Fourth Proportional to 142,477,643.70, 213,716,465.55 and 97,128,011.70
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Solution
The fourth proportional to 142,477,643.70, 213,716,465.55 and 97,128,011.70 is: 145,692,017.55
Step by Step Solution
- Step 1: Write the proportion equation
142,477,643.70 : 213,716,465.55 = 97,128,011.70 : x - Step 2: Convert to fraction form
142,477,643.70/213,716,465.55 = 97,128,011.70/x - Step 3: Cross multiply
142,477,643.70x = 213,716,465.55 × 97,128,011.70 - Step 4: Simplify right side
142,477,643.70x = 20,757,855,366,423,048 - Step 5: Solve for x
x = 20,757,855,366,423,048/142,477,643.70 - Step 6: Final answer
x = 145,692,017.55
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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.