Finding the Fourth Proportional to 2,908,931,457.24, 4,014,337,670.67 and 1,638,787,681.08
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Solution
The fourth proportional to 2,908,931,457.24, 4,014,337,670.67 and 1,638,787,681.08 is: 2,261,533,906.55
Step by Step Solution
- Step 1: Write the proportion equation
2,908,931,457.24 : 4,014,337,670.67 = 1,638,787,681.08 : x - Step 2: Convert to fraction form
2,908,931,457.24/4,014,337,670.67 = 1,638,787,681.08/x - Step 3: Cross multiply
2,908,931,457.24x = 4,014,337,670.67 × 1,638,787,681.08 - Step 4: Simplify right side
2,908,931,457.24x = 6,578,647,122,389,378,048 - Step 5: Solve for x
x = 6,578,647,122,389,378,048/2,908,931,457.24 - Step 6: Final answer
x = 2,261,533,906.55
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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.