Finding the Fourth Proportional to 42,287,449,756.21, 63,459,119,574.24 and 19,909,597,738.21
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Solution
The fourth proportional to 42,287,449,756.21, 63,459,119,574.24 and 19,909,597,738.21 is: 29,877,553,525.41
Step by Step Solution
- Step 1: Write the proportion equation
42,287,449,756.21 : 63,459,119,574.24 = 19,909,597,738.21 : x - Step 2: Convert to fraction form
42,287,449,756.21/63,459,119,574.24 = 19,909,597,738.21/x - Step 3: Cross multiply
42,287,449,756.21x = 63,459,119,574.24 × 19,909,597,738.21 - Step 4: Simplify right side
42,287,449,756.21x = 1,263,445,543,543,959,715,840 - Step 5: Solve for x
x = 1,263,445,543,543,959,715,840/42,287,449,756.21 - Step 6: Final answer
x = 29,877,553,525.41
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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.