Finding the Fourth Proportional to 87,857,415.28, 121,249,069.16 and 48,700,842.32
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Solution
The fourth proportional to 87,857,415.28, 121,249,069.16 and 48,700,842.32 is: 67,210,397.44
Step by Step Solution
- Step 1: Write the proportion equation
87,857,415.28 : 121,249,069.16 = 48,700,842.32 : x - Step 2: Convert to fraction form
87,857,415.28/121,249,069.16 = 48,700,842.32/x - Step 3: Cross multiply
87,857,415.28x = 121,249,069.16 × 48,700,842.32 - Step 4: Simplify right side
87,857,415.28x = 5,904,931,798,607,935 - Step 5: Solve for x
x = 5,904,931,798,607,935/87,857,415.28 - Step 6: Final answer
x = 67,210,397.44
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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.