Finding the Fourth Proportional to 135,158,671.55, 186,522,901.48 and 76,420,075.53
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Solution
The fourth proportional to 135,158,671.55, 186,522,901.48 and 76,420,075.53 is: 105,461,928.97
Step by Step Solution
- Step 1: Write the proportion equation
135,158,671.55 : 186,522,901.48 = 76,420,075.53 : x - Step 2: Convert to fraction form
135,158,671.55/186,522,901.48 = 76,420,075.53/x - Step 3: Cross multiply
135,158,671.55x = 186,522,901.48 × 76,420,075.53 - Step 4: Simplify right side
135,158,671.55x = 14,254,094,219,176,348 - Step 5: Solve for x
x = 14,254,094,219,176,348/135,158,671.55 - Step 6: Final answer
x = 105,461,928.97
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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.