Finding the Fourth Proportional to 930,448,381.96, 1,283,981,383.65 and 507,053,052.41
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Solution
The fourth proportional to 930,448,381.96, 1,283,981,383.65 and 507,053,052.41 is: 699,712,840.00
Step by Step Solution
- Step 1: Write the proportion equation
930,448,381.96 : 1,283,981,383.65 = 507,053,052.41 : x - Step 2: Convert to fraction form
930,448,381.96/1,283,981,383.65 = 507,053,052.41/x - Step 3: Cross multiply
930,448,381.96x = 1,283,981,383.65 × 507,053,052.41 - Step 4: Simplify right side
930,448,381.96x = 651,046,679,817,347,840 - Step 5: Solve for x
x = 651,046,679,817,347,840/930,448,381.96 - Step 6: Final answer
x = 699,712,840.00
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Double scale
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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.