Finding the Fourth Proportional to 458,630,394.42, 688,241,559.15 and 167,473,139.70
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Solution
The fourth proportional to 458,630,394.42, 688,241,559.15 and 167,473,139.70 is: 251,317,784.83
Step by Step Solution
- Step 1: Write the proportion equation
458,630,394.42 : 688,241,559.15 = 167,473,139.70 : x - Step 2: Convert to fraction form
458,630,394.42/688,241,559.15 = 167,473,139.70/x - Step 3: Cross multiply
458,630,394.42x = 688,241,559.15 × 167,473,139.70 - Step 4: Simplify right side
458,630,394.42x = 115,261,974,782,873,744 - Step 5: Solve for x
x = 115,261,974,782,873,744/458,630,394.42 - Step 6: Final answer
x = 251,317,784.83
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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.