Finding the Fourth Proportional to 861,034,558.73, 1,187,593,248.38 and 649,350,299.93
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Solution
The fourth proportional to 861,034,558.73, 1,187,593,248.38 and 649,350,299.93 is: 895,624,948.16
Step by Step Solution
- Step 1: Write the proportion equation
861,034,558.73 : 1,187,593,248.38 = 649,350,299.93 : x - Step 2: Convert to fraction form
861,034,558.73/1,187,593,248.38 = 649,350,299.93/x - Step 3: Cross multiply
861,034,558.73x = 1,187,593,248.38 × 649,350,299.93 - Step 4: Simplify right side
861,034,558.73x = 771,164,032,021,211,264 - Step 5: Solve for x
x = 771,164,032,021,211,264/861,034,558.73 - Step 6: Final answer
x = 895,624,948.16
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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.