Finding the Fourth Proportional to 90,173,455.21, 124,439,609.50 and 48,920,347.58
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Solution
The fourth proportional to 90,173,455.21, 124,439,609.50 and 48,920,347.58 is: 67,510,210.58
Step by Step Solution
- Step 1: Write the proportion equation
90,173,455.21 : 124,439,609.50 = 48,920,347.58 : x - Step 2: Convert to fraction form
90,173,455.21/124,439,609.50 = 48,920,347.58/x - Step 3: Cross multiply
90,173,455.21x = 124,439,609.50 × 48,920,347.58 - Step 4: Simplify right side
90,173,455.21x = 6,087,628,949,902,459 - Step 5: Solve for x
x = 6,087,628,949,902,459/90,173,455.21 - Step 6: Final answer
x = 67,510,210.58
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1.5x scale
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.