Finding the Fourth Proportional to 86,056,432.24, 129,122,767.68 and 45,106,139.32
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Solution
The fourth proportional to 86,056,432.24, 129,122,767.68 and 45,106,139.32 is: 67,679,189.07
Step by Step Solution
- Step 1: Write the proportion equation
86,056,432.24 : 129,122,767.68 = 45,106,139.32 : x - Step 2: Convert to fraction form
86,056,432.24/129,122,767.68 = 45,106,139.32/x - Step 3: Cross multiply
86,056,432.24x = 129,122,767.68 × 45,106,139.32 - Step 4: Simplify right side
86,056,432.24x = 5,824,229,548,358,074 - Step 5: Solve for x
x = 5,824,229,548,358,074/86,056,432.24 - Step 6: Final answer
x = 67,679,189.07
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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.