Finding the Fourth Proportional to 298,423,555.93, 411,829,011.18 and 171,285,264.75
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Solution
The fourth proportional to 298,423,555.93, 411,829,011.18 and 171,285,264.75 is: 236,376,250.50
Step by Step Solution
- Step 1: Write the proportion equation
298,423,555.93 : 411,829,011.18 = 171,285,264.75 : x - Step 2: Convert to fraction form
298,423,555.93/411,829,011.18 = 171,285,264.75/x - Step 3: Cross multiply
298,423,555.93x = 411,829,011.18 × 171,285,264.75 - Step 4: Simplify right side
298,423,555.93x = 70,540,241,210,922,776 - Step 5: Solve for x
x = 70,540,241,210,922,776/298,423,555.93 - Step 6: Final answer
x = 236,376,250.50
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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.