Finding the Fourth Proportional to 6,419,901,312.18, 8,828,047,315.62 and 5,571,655,988.13
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Solution
The fourth proportional to 6,419,901,312.18, 8,828,047,315.62 and 5,571,655,988.13 is: 7,661,619,750.49
Step by Step Solution
- Step 1: Write the proportion equation
6,419,901,312.18 : 8,828,047,315.62 = 5,571,655,988.13 : x - Step 2: Convert to fraction form
6,419,901,312.18/8,828,047,315.62 = 5,571,655,988.13/x - Step 3: Cross multiply
6,419,901,312.18x = 8,828,047,315.62 × 5,571,655,988.13 - Step 4: Simplify right side
6,419,901,312.18x = 49,186,842,689,569,153,024 - Step 5: Solve for x
x = 49,186,842,689,569,153,024/6,419,901,312.18 - Step 6: Final answer
x = 7,661,619,750.49
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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.