Finding the Fourth Proportional to 77,971,518, 107,360,358.12 and 69,254,544.24
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Solution
The fourth proportional to 77,971,518, 107,360,358.12 and 69,254,544.24 is: 95,357,803.23
Step by Step Solution
- Step 1: Write the proportion equation
77,971,518 : 107,360,358.12 = 69,254,544.24 : x - Step 2: Convert to fraction form
77,971,518/107,360,358.12 = 69,254,544.24/x - Step 3: Cross multiply
77,971,518x = 107,360,358.12 × 69,254,544.24 - Step 4: Simplify right side
77,971,518x = 7,435,192,671,043,783 - Step 5: Solve for x
x = 7,435,192,671,043,783/77,971,518 - Step 6: Final answer
x = 95,357,803.23
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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.