Finding the Fourth Proportional to 48,197,459.18, 66,495,866.69 and 30,803,985.74
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Solution
The fourth proportional to 48,197,459.18, 66,495,866.69 and 30,803,985.74 is: 42,498,873.67
Step by Step Solution
- Step 1: Write the proportion equation
48,197,459.18 : 66,495,866.69 = 30,803,985.74 : x - Step 2: Convert to fraction form
48,197,459.18/66,495,866.69 = 30,803,985.74/x - Step 3: Cross multiply
48,197,459.18x = 66,495,866.69 × 30,803,985.74 - Step 4: Simplify right side
48,197,459.18x = 2,048,337,728,801,201.75 - Step 5: Solve for x
x = 2,048,337,728,801,201.75/48,197,459.18 - Step 6: Final answer
x = 42,498,873.67
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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.