Finding the Fourth Proportional to 1,537,468,257.35, 2,121,695,630.34 and 832,604,108.78
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Solution
The fourth proportional to 1,537,468,257.35, 2,121,695,630.34 and 832,604,108.78 is: 1,148,987,948.83
Step by Step Solution
- Step 1: Write the proportion equation
1,537,468,257.35 : 2,121,695,630.34 = 832,604,108.78 : x - Step 2: Convert to fraction form
1,537,468,257.35/2,121,695,630.34 = 832,604,108.78/x - Step 3: Cross multiply
1,537,468,257.35x = 2,121,695,630.34 × 832,604,108.78 - Step 4: Simplify right side
1,537,468,257.35x = 1,766,532,499,401,655,808 - Step 5: Solve for x
x = 1,766,532,499,401,655,808/1,537,468,257.35 - Step 6: Final answer
x = 1,148,987,948.83
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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.