Finding the Fourth Proportional to 42,117,984, 63,176,984.64 and 15,191,637.12
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Solution
The fourth proportional to 42,117,984, 63,176,984.64 and 15,191,637.12 is: 22,787,458.80
Step by Step Solution
- Step 1: Write the proportion equation
42,117,984 : 63,176,984.64 = 15,191,637.12 : x - Step 2: Convert to fraction form
42,117,984/63,176,984.64 = 15,191,637.12/x - Step 3: Cross multiply
42,117,984x = 63,176,984.64 × 15,191,637.12 - Step 4: Simplify right side
42,117,984x = 959,761,824,986,693.75 - Step 5: Solve for x
x = 959,761,824,986,693.75/42,117,984 - Step 6: Final answer
x = 22,787,458.80
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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.