Finding the Fourth Proportional to 90,173,343.51, 124,439,455.20 and 48,920,235.87
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Solution
The fourth proportional to 90,173,343.51, 124,439,455.20 and 48,920,235.87 is: 67,510,056.33
Step by Step Solution
- Step 1: Write the proportion equation
90,173,343.51 : 124,439,455.20 = 48,920,235.87 : x - Step 2: Convert to fraction form
90,173,343.51/124,439,455.20 = 48,920,235.87/x - Step 3: Cross multiply
90,173,343.51x = 124,439,455.20 × 48,920,235.87 - Step 4: Simplify right side
90,173,343.51x = 6,087,607,499,918,298 - Step 5: Solve for x
x = 6,087,607,499,918,298/90,173,343.51 - Step 6: Final answer
x = 67,510,056.33
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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.