Finding the Fourth Proportional to 903,855,225.64, 1,247,283,479.94 and 512,706,251.56
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Solution
The fourth proportional to 903,855,225.64, 1,247,283,479.94 and 512,706,251.56 is: 707,513,791.47
Step by Step Solution
- Step 1: Write the proportion equation
903,855,225.64 : 1,247,283,479.94 = 512,706,251.56 : x - Step 2: Convert to fraction form
903,855,225.64/1,247,283,479.94 = 512,706,251.56/x - Step 3: Cross multiply
903,855,225.64x = 1,247,283,479.94 × 512,706,251.56 - Step 4: Simplify right side
903,855,225.64x = 639,490,037,632,749,824 - Step 5: Solve for x
x = 639,490,037,632,749,824/903,855,225.64 - Step 6: Final answer
x = 707,513,791.47
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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.