Finding the Fourth Proportional to 290,335,069.05, 435,502,603.58 and 288,319,529.85
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Solution
The fourth proportional to 290,335,069.05, 435,502,603.58 and 288,319,529.85 is: 432,479,294.78
Step by Step Solution
- Step 1: Write the proportion equation
290,335,069.05 : 435,502,603.58 = 288,319,529.85 : x - Step 2: Convert to fraction form
290,335,069.05/435,502,603.58 = 288,319,529.85/x - Step 3: Cross multiply
290,335,069.05x = 435,502,603.58 × 288,319,529.85 - Step 4: Simplify right side
290,335,069.05x = 125,563,905,911,194,944 - Step 5: Solve for x
x = 125,563,905,911,194,944/290,335,069.05 - Step 6: Final answer
x = 432,479,294.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.