Finding the Fourth Proportional to 42,753,878.97, 59,049,385.91 and 28,134,809.12
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Solution
The fourth proportional to 42,753,878.97, 59,049,385.91 and 28,134,809.12 is: 38,858,303.43
Step by Step Solution
- Step 1: Write the proportion equation
42,753,878.97 : 59,049,385.91 = 28,134,809.12 : x - Step 2: Convert to fraction form
42,753,878.97/59,049,385.91 = 28,134,809.12/x - Step 3: Cross multiply
42,753,878.97x = 59,049,385.91 × 28,134,809.12 - Step 4: Simplify right side
42,753,878.97x = 1,661,343,201,501,808.75 - Step 5: Solve for x
x = 1,661,343,201,501,808.75/42,753,878.97 - Step 6: Final answer
x = 38,858,303.43
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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.