Finding the Fourth Proportional to 129,931,051.18, 194,831,726.72 and 42,481,177.10
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Solution
The fourth proportional to 129,931,051.18, 194,831,726.72 and 42,481,177.10 is: 63,700,562.82
Step by Step Solution
- Step 1: Write the proportion equation
129,931,051.18 : 194,831,726.72 = 42,481,177.10 : x - Step 2: Convert to fraction form
129,931,051.18/194,831,726.72 = 42,481,177.10/x - Step 3: Cross multiply
129,931,051.18x = 194,831,726.72 × 42,481,177.10 - Step 4: Simplify right side
129,931,051.18x = 8,276,681,087,491,122 - Step 5: Solve for x
x = 8,276,681,087,491,122/129,931,051.18 - Step 6: Final answer
x = 63,700,562.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.