Finding the Fourth Proportional to 861,034,557.47, 1,187,593,246.65 and 649,350,298.67
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Solution
The fourth proportional to 861,034,557.47, 1,187,593,246.65 and 649,350,298.67 is: 895,624,946.43
Step by Step Solution
- Step 1: Write the proportion equation
861,034,557.47 : 1,187,593,246.65 = 649,350,298.67 : x - Step 2: Convert to fraction form
861,034,557.47/1,187,593,246.65 = 649,350,298.67/x - Step 3: Cross multiply
861,034,557.47x = 1,187,593,246.65 × 649,350,298.67 - Step 4: Simplify right side
861,034,557.47x = 771,164,029,410,652,544 - Step 5: Solve for x
x = 771,164,029,410,652,544/861,034,557.47 - Step 6: Final answer
x = 895,624,946.43
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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.