Finding the Fourth Proportional to 190,762,445.70, 286,143,668.55 and 47,155,277.70
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Solution
The fourth proportional to 190,762,445.70, 286,143,668.55 and 47,155,277.70 is: 70,732,916.55
Step by Step Solution
- Step 1: Write the proportion equation
190,762,445.70 : 286,143,668.55 = 47,155,277.70 : x - Step 2: Convert to fraction form
190,762,445.70/286,143,668.55 = 47,155,277.70/x - Step 3: Cross multiply
190,762,445.70x = 286,143,668.55 × 47,155,277.70 - Step 4: Simplify right side
190,762,445.70x = 13,493,184,152,572,008 - Step 5: Solve for x
x = 13,493,184,152,572,008/190,762,445.70 - Step 6: Final answer
x = 70,732,916.55
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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.