Finding the Fourth Proportional to 907,544,569.80, 1,252,990,785.30 and 740,679,476.92
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Solution
The fourth proportional to 907,544,569.80, 1,252,990,785.30 and 740,679,476.92 is: 1,022,610,448.37
Step by Step Solution
- Step 1: Write the proportion equation
907,544,569.80 : 1,252,990,785.30 = 740,679,476.92 : x - Step 2: Convert to fraction form
907,544,569.80/1,252,990,785.30 = 740,679,476.92/x - Step 3: Cross multiply
907,544,569.80x = 1,252,990,785.30 × 740,679,476.92 - Step 4: Simplify right side
907,544,569.80x = 928,064,559,441,584,000 - Step 5: Solve for x
x = 928,064,559,441,584,000/907,544,569.80 - Step 6: Final answer
x = 1,022,610,448.37
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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.