Finding the Fourth Proportional to 218,681,934.68, 301,787,368.08 and 120,903,089.24
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Solution
The fourth proportional to 218,681,934.68, 301,787,368.08 and 120,903,089.24 is: 166,849,745.26
Step by Step Solution
- Step 1: Write the proportion equation
218,681,934.68 : 301,787,368.08 = 120,903,089.24 : x - Step 2: Convert to fraction form
218,681,934.68/301,787,368.08 = 120,903,089.24/x - Step 3: Cross multiply
218,681,934.68x = 301,787,368.08 × 120,903,089.24 - Step 4: Simplify right side
218,681,934.68x = 36,487,025,094,480,960 - Step 5: Solve for x
x = 36,487,025,094,480,960/218,681,934.68 - Step 6: Final answer
x = 166,849,745.26
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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.