Finding the Fourth Proportional to 219,092,865.68, 302,357,602.44 and 121,307,730.32
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Solution
The fourth proportional to 219,092,865.68, 302,357,602.44 and 121,307,730.32 is: 167,409,898.92
Step by Step Solution
- Step 1: Write the proportion equation
219,092,865.68 : 302,357,602.44 = 121,307,730.32 : x - Step 2: Convert to fraction form
219,092,865.68/302,357,602.44 = 121,307,730.32/x - Step 3: Cross multiply
219,092,865.68x = 302,357,602.44 × 121,307,730.32 - Step 4: Simplify right side
219,092,865.68x = 36,678,314,496,993,288 - Step 5: Solve for x
x = 36,678,314,496,993,288/219,092,865.68 - Step 6: Final answer
x = 167,409,898.92
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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.