Finding the Fourth Proportional to 1,907,431,281.96, 2,861,283,125.42 and 508,408,225.28
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Solution
The fourth proportional to 1,907,431,281.96, 2,861,283,125.42 and 508,408,225.28 is: 762,648,641.44
Step by Step Solution
- Step 1: Write the proportion equation
1,907,431,281.96 : 2,861,283,125.42 = 508,408,225.28 : x - Step 2: Convert to fraction form
1,907,431,281.96/2,861,283,125.42 = 508,408,225.28/x - Step 3: Cross multiply
1,907,431,281.96x = 2,861,283,125.42 × 508,408,225.28 - Step 4: Simplify right side
1,907,431,281.96x = 1,454,699,875,818,393,856 - Step 5: Solve for x
x = 1,454,699,875,818,393,856/1,907,431,281.96 - Step 6: Final answer
x = 762,648,641.44
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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.