Finding the Fourth Proportional to 139,888,528.66, 193,046,355.50 and 77,163,211.69
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Solution
The fourth proportional to 139,888,528.66, 193,046,355.50 and 77,163,211.69 is: 106,485,334.70
Step by Step Solution
- Step 1: Write the proportion equation
139,888,528.66 : 193,046,355.50 = 77,163,211.69 : x - Step 2: Convert to fraction form
139,888,528.66/193,046,355.50 = 77,163,211.69/x - Step 3: Cross multiply
139,888,528.66x = 193,046,355.50 × 77,163,211.69 - Step 4: Simplify right side
139,888,528.66x = 14,896,076,795,429,496 - Step 5: Solve for x
x = 14,896,076,795,429,496/139,888,528.66 - Step 6: Final answer
x = 106,485,334.70
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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.