Finding the Fourth Proportional to 139,888,530.66, 193,046,358.26 and 77,163,213.70
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Solution
The fourth proportional to 139,888,530.66, 193,046,358.26 and 77,163,213.70 is: 106,485,337.48
Step by Step Solution
- Step 1: Write the proportion equation
139,888,530.66 : 193,046,358.26 = 77,163,213.70 : x - Step 2: Convert to fraction form
139,888,530.66/193,046,358.26 = 77,163,213.70/x - Step 3: Cross multiply
139,888,530.66x = 193,046,358.26 × 77,163,213.70 - Step 4: Simplify right side
139,888,530.66x = 14,896,077,396,423,140 - Step 5: Solve for x
x = 14,896,077,396,423,140/139,888,530.66 - Step 6: Final answer
x = 106,485,337.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.