Finding the Fourth Proportional to 687,483,901.17, 1,031,299,649.06 and 294,051,588.12
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Solution
The fourth proportional to 687,483,901.17, 1,031,299,649.06 and 294,051,588.12 is: 441,108,946.87
Step by Step Solution
- Step 1: Write the proportion equation
687,483,901.17 : 1,031,299,649.06 = 294,051,588.12 : x - Step 2: Convert to fraction form
687,483,901.17/1,031,299,649.06 = 294,051,588.12/x - Step 3: Cross multiply
687,483,901.17x = 1,031,299,649.06 × 294,051,588.12 - Step 4: Simplify right side
687,483,901.17x = 303,255,299,632,221,376 - Step 5: Solve for x
x = 303,255,299,632,221,376/687,483,901.17 - Step 6: Final answer
x = 441,108,946.87
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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.