Finding the Fourth Proportional to 70,890,468.12, 97,828,933.68 and 38,295,420.12
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Solution
The fourth proportional to 70,890,468.12, 97,828,933.68 and 38,295,420.12 is: 52,847,727.13
Step by Step Solution
- Step 1: Write the proportion equation
70,890,468.12 : 97,828,933.68 = 38,295,420.12 : x - Step 2: Convert to fraction form
70,890,468.12/97,828,933.68 = 38,295,420.12/x - Step 3: Cross multiply
70,890,468.12x = 97,828,933.68 × 38,295,420.12 - Step 4: Simplify right side
70,890,468.12x = 3,746,400,115,167,217.50 - Step 5: Solve for x
x = 3,746,400,115,167,217.50/70,890,468.12 - Step 6: Final answer
x = 52,847,727.13
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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.