Finding the Fourth Proportional to 129,392,257,731.10, 194,109,242,389.98 and 39,855,209,484.95
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Solution
The fourth proportional to 129,392,257,731.10, 194,109,242,389.98 and 39,855,209,484.95 is: 59,789,238,197.65
Step by Step Solution
- Step 1: Write the proportion equation
129,392,257,731.10 : 194,109,242,389.98 = 39,855,209,484.95 : x - Step 2: Convert to fraction form
129,392,257,731.10/194,109,242,389.98 = 39,855,209,484.95/x - Step 3: Cross multiply
129,392,257,731.10x = 194,109,242,389.98 × 39,855,209,484.95 - Step 4: Simplify right side
129,392,257,731.10x = 7,736,264,518,416,619,012,096 - Step 5: Solve for x
x = 7,736,264,518,416,619,012,096/129,392,257,731.10 - Step 6: Final answer
x = 59,789,238,197.65
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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.