Finding the Fourth Proportional to 70,062,813.71, 96,686,997.69 and 38,273,421.63
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Solution
The fourth proportional to 70,062,813.71, 96,686,997.69 and 38,273,421.63 is: 52,817,493.80
Step by Step Solution
- Step 1: Write the proportion equation
70,062,813.71 : 96,686,997.69 = 38,273,421.63 : x - Step 2: Convert to fraction form
70,062,813.71/96,686,997.69 = 38,273,421.63/x - Step 3: Cross multiply
70,062,813.71x = 96,686,997.69 × 38,273,421.63 - Step 4: Simplify right side
70,062,813.71x = 3,700,542,228,475,155 - Step 5: Solve for x
x = 3,700,542,228,475,155/70,062,813.71 - Step 6: Final answer
x = 52,817,493.80
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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.