Finding the Fourth Proportional to 782,310,268.28, 1,079,596,762.88 and 429,886,350.11
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Solution
The fourth proportional to 782,310,268.28, 1,079,596,762.88 and 429,886,350.11 is: 593,247,884.88
Step by Step Solution
- Step 1: Write the proportion equation
782,310,268.28 : 1,079,596,762.88 = 429,886,350.11 : x - Step 2: Convert to fraction form
782,310,268.28/1,079,596,762.88 = 429,886,350.11/x - Step 3: Cross multiply
782,310,268.28x = 1,079,596,762.88 × 429,886,350.11 - Step 4: Simplify right side
782,310,268.28x = 464,103,911,977,506,944 - Step 5: Solve for x
x = 464,103,911,977,506,944/782,310,268.28 - Step 6: Final answer
x = 593,247,884.88
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1.5x scale
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.