Finding the Fourth Proportional to 930,954,287.13, 1,285,943,248.58 and 690,038,652.09
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Solution
The fourth proportional to 930,954,287.13, 1,285,943,248.58 and 690,038,652.09 is: 953,162,317.61
Step by Step Solution
- Step 1: Write the proportion equation
930,954,287.13 : 1,285,943,248.58 = 690,038,652.09 : x - Step 2: Convert to fraction form
930,954,287.13/1,285,943,248.58 = 690,038,652.09/x - Step 3: Cross multiply
930,954,287.13x = 1,285,943,248.58 × 690,038,652.09 - Step 4: Simplify right side
930,954,287.13x = 887,350,545,910,928,896 - Step 5: Solve for x
x = 887,350,545,910,928,896/930,954,287.13 - Step 6: Final answer
x = 953,162,317.61
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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.