Finding the Fourth Proportional to 83,138,807.20, 124,708,210.80 and 62,983,415.20
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Solution
The fourth proportional to 83,138,807.20, 124,708,210.80 and 62,983,415.20 is: 94,475,122.80
Step by Step Solution
- Step 1: Write the proportion equation
83,138,807.20 : 124,708,210.80 = 62,983,415.20 : x - Step 2: Convert to fraction form
83,138,807.20/124,708,210.80 = 62,983,415.20/x - Step 3: Cross multiply
83,138,807.20x = 124,708,210.80 × 62,983,415.20 - Step 4: Simplify right side
83,138,807.20x = 7,854,549,019,665,524 - Step 5: Solve for x
x = 7,854,549,019,665,524/83,138,807.20 - Step 6: Final answer
x = 94,475,122.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.