Finding the Fourth Proportional to 565,911,888.87, 780,950,407.41 and 318,392,652.63
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Solution
The fourth proportional to 565,911,888.87, 780,950,407.41 and 318,392,652.63 is: 439,377,360.11
Step by Step Solution
- Step 1: Write the proportion equation
565,911,888.87 : 780,950,407.41 = 318,392,652.63 : x - Step 2: Convert to fraction form
565,911,888.87/780,950,407.41 = 318,392,652.63/x - Step 3: Cross multiply
565,911,888.87x = 780,950,407.41 × 318,392,652.63 - Step 4: Simplify right side
565,911,888.87x = 248,648,871,787,749,088 - Step 5: Solve for x
x = 248,648,871,787,749,088/565,911,888.87 - Step 6: Final answer
x = 439,377,360.11
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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.