Finding the Fourth Proportional to 4,972,360,931.81, 6,861,930,449.70 and 2,828,921,459.24
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Solution
The fourth proportional to 4,972,360,931.81, 6,861,930,449.70 and 2,828,921,459.24 is: 3,903,952,783.64
Step by Step Solution
- Step 1: Write the proportion equation
4,972,360,931.81 : 6,861,930,449.70 = 2,828,921,459.24 : x - Step 2: Convert to fraction form
4,972,360,931.81/6,861,930,449.70 = 2,828,921,459.24/x - Step 3: Cross multiply
4,972,360,931.81x = 6,861,930,449.70 × 2,828,921,459.24 - Step 4: Simplify right side
4,972,360,931.81x = 19,411,862,300,975,034,368 - Step 5: Solve for x
x = 19,411,862,300,975,034,368/4,972,360,931.81 - Step 6: Final answer
x = 3,903,952,783.64
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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.