Finding the Fourth Proportional to 887,783,708.77, 1,225,091,670.87 and 485,896,639.06
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Solution
The fourth proportional to 887,783,708.77, 1,225,091,670.87 and 485,896,639.06 is: 670,510,079.80
Step by Step Solution
- Step 1: Write the proportion equation
887,783,708.77 : 1,225,091,670.87 = 485,896,639.06 : x - Step 2: Convert to fraction form
887,783,708.77/1,225,091,670.87 = 485,896,639.06/x - Step 3: Cross multiply
887,783,708.77x = 1,225,091,670.87 × 485,896,639.06 - Step 4: Simplify right side
887,783,708.77x = 595,267,925,412,586,624 - Step 5: Solve for x
x = 595,267,925,412,586,624/887,783,708.77 - Step 6: Final answer
x = 670,510,079.80
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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.