Finding the Fourth Proportional to 70,986,823.68, 97,961,816.52 and 38,391,775.68
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Solution
The fourth proportional to 70,986,823.68, 97,961,816.52 and 38,391,775.68 is: 52,980,650.35
Step by Step Solution
- Step 1: Write the proportion equation
70,986,823.68 : 97,961,816.52 = 38,391,775.68 : x - Step 2: Convert to fraction form
70,986,823.68/97,961,816.52 = 38,391,775.68/x - Step 3: Cross multiply
70,986,823.68x = 97,961,816.52 × 38,391,775.68 - Step 4: Simplify right side
70,986,823.68x = 3,760,928,085,041,158 - Step 5: Solve for x
x = 3,760,928,085,041,158/70,986,823.68 - Step 6: Final answer
x = 52,980,650.35
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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.