Finding the Fourth Proportional to 313,635,510.34, 432,908,242.35 and 209,213,332.55
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Solution
The fourth proportional to 313,635,510.34, 432,908,242.35 and 209,213,332.55 is: 288,775,260.09
Step by Step Solution
- Step 1: Write the proportion equation
313,635,510.34 : 432,908,242.35 = 209,213,332.55 : x - Step 2: Convert to fraction form
313,635,510.34/432,908,242.35 = 209,213,332.55/x - Step 3: Cross multiply
313,635,510.34x = 432,908,242.35 × 209,213,332.55 - Step 4: Simplify right side
313,635,510.34x = 90,570,176,070,258,576 - Step 5: Solve for x
x = 90,570,176,070,258,576/313,635,510.34 - Step 6: Final answer
x = 288,775,260.09
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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.