Finding the Fourth Proportional to 667,246,192.36, 920,799,725.51 and 369,887,681.02
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Solution
The fourth proportional to 667,246,192.36, 920,799,725.51 and 369,887,681.02 is: 510,444,988.75
Step by Step Solution
- Step 1: Write the proportion equation
667,246,192.36 : 920,799,725.51 = 369,887,681.02 : x - Step 2: Convert to fraction form
667,246,192.36/920,799,725.51 = 369,887,681.02/x - Step 3: Cross multiply
667,246,192.36x = 920,799,725.51 × 369,887,681.02 - Step 4: Simplify right side
667,246,192.36x = 340,592,475,152,746,432 - Step 5: Solve for x
x = 340,592,475,152,746,432/667,246,192.36 - Step 6: Final answer
x = 510,444,988.75
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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.