Finding the Fourth Proportional to 77,301,175.32, 106,678,219.64 and 45,505,607.68
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Solution
The fourth proportional to 77,301,175.32, 106,678,219.64 and 45,505,607.68 is: 62,799,267.81
Step by Step Solution
- Step 1: Write the proportion equation
77,301,175.32 : 106,678,219.64 = 45,505,607.68 : x - Step 2: Convert to fraction form
77,301,175.32/106,678,219.64 = 45,505,607.68/x - Step 3: Cross multiply
77,301,175.32x = 106,678,219.64 × 45,505,607.68 - Step 4: Simplify right side
77,301,175.32x = 4,854,457,210,938,711 - Step 5: Solve for x
x = 4,854,457,210,938,711/77,301,175.32 - Step 6: Final answer
x = 62,799,267.81
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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.