Finding the Fourth Proportional to 28,098,848.75, 38,777,263.18 and 15,709,464.18
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Solution
The fourth proportional to 28,098,848.75, 38,777,263.18 and 15,709,464.18 is: 21,679,536.85
Step by Step Solution
- Step 1: Write the proportion equation
28,098,848.75 : 38,777,263.18 = 15,709,464.18 : x - Step 2: Convert to fraction form
28,098,848.75/38,777,263.18 = 15,709,464.18/x - Step 3: Cross multiply
28,098,848.75x = 38,777,263.18 × 15,709,464.18 - Step 4: Simplify right side
28,098,848.75x = 609,170,026,885,369.25 - Step 5: Solve for x
x = 609,170,026,885,369.25/28,098,848.75 - Step 6: Final answer
x = 21,679,536.85
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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.