Finding the Fourth Proportional to 39,021,931.62, 58,513,743.83 and 19,303,275.62
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Solution
The fourth proportional to 39,021,931.62, 58,513,743.83 and 19,303,275.62 is: 28,945,438.58
Step by Step Solution
- Step 1: Write the proportion equation
39,021,931.62 : 58,513,743.83 = 19,303,275.62 : x - Step 2: Convert to fraction form
39,021,931.62/58,513,743.83 = 19,303,275.62/x - Step 3: Cross multiply
39,021,931.62x = 58,513,743.83 × 19,303,275.62 - Step 4: Simplify right side
39,021,931.62x = 1,129,506,924,903,107 - Step 5: Solve for x
x = 1,129,506,924,903,107/39,021,931.62 - Step 6: Final answer
x = 28,945,438.58
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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.