Finding the Fourth Proportional to 79,721,303.98, 110,015,398.84 and 43,051,871.74
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Solution
The fourth proportional to 79,721,303.98, 110,015,398.84 and 43,051,871.74 is: 59,411,582.65
Step by Step Solution
- Step 1: Write the proportion equation
79,721,303.98 : 110,015,398.84 = 43,051,871.74 : x - Step 2: Convert to fraction form
79,721,303.98/110,015,398.84 = 43,051,871.74/x - Step 3: Cross multiply
79,721,303.98x = 110,015,398.84 × 43,051,871.74 - Step 4: Simplify right side
79,721,303.98x = 4,736,368,839,734,548 - Step 5: Solve for x
x = 4,736,368,839,734,548/79,721,303.98 - Step 6: Final answer
x = 59,411,582.65
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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.