Finding the Fourth Proportional to 930,362,398.98, 1,283,908,719.99 and 512,689,630.62
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Solution
The fourth proportional to 930,362,398.98, 1,283,908,719.99 and 512,689,630.62 is: 707,516,434.59
Step by Step Solution
- Step 1: Write the proportion equation
930,362,398.98 : 1,283,908,719.99 = 512,689,630.62 : x - Step 2: Convert to fraction form
930,362,398.98/1,283,908,719.99 = 512,689,630.62/x - Step 3: Cross multiply
930,362,398.98x = 1,283,908,719.99 × 512,689,630.62 - Step 4: Simplify right side
930,362,398.98x = 658,246,687,401,470,080 - Step 5: Solve for x
x = 658,246,687,401,470,080/930,362,398.98 - Step 6: Final answer
x = 707,516,434.59
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1.5x scale
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.