Finding the Fourth Proportional to 42,587,890.98, 63,881,829.18 and 13,462,175.84
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Solution
The fourth proportional to 42,587,890.98, 63,881,829.18 and 13,462,175.84 is: 20,193,261.45
Step by Step Solution
- Step 1: Write the proportion equation
42,587,890.98 : 63,881,829.18 = 13,462,175.84 : x - Step 2: Convert to fraction form
42,587,890.98/63,881,829.18 = 13,462,175.84/x - Step 3: Cross multiply
42,587,890.98x = 63,881,829.18 × 13,462,175.84 - Step 4: Simplify right side
42,587,890.98x = 859,988,417,082,593.88 - Step 5: Solve for x
x = 859,988,417,082,593.88/42,587,890.98 - Step 6: Final answer
x = 20,193,261.45
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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.