Finding the Fourth Proportional to 68,239,710.30, 102,359,565.45 and 22,181,490.30
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Solution
The fourth proportional to 68,239,710.30, 102,359,565.45 and 22,181,490.30 is: 33,272,235.45
Step by Step Solution
- Step 1: Write the proportion equation
68,239,710.30 : 102,359,565.45 = 22,181,490.30 : x - Step 2: Convert to fraction form
68,239,710.30/102,359,565.45 = 22,181,490.30/x - Step 3: Cross multiply
68,239,710.30x = 102,359,565.45 × 22,181,490.30 - Step 4: Simplify right side
68,239,710.30x = 2,270,487,708,141,390.50 - Step 5: Solve for x
x = 2,270,487,708,141,390.50/68,239,710.30 - Step 6: Final answer
x = 33,272,235.45
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1.5x scale
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.