Finding the Fourth Proportional to 3,974,395,735.95, 5,484,506,432.74 and 2,165,869,201.33
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Solution
The fourth proportional to 3,974,395,735.95, 5,484,506,432.74 and 2,165,869,201.33 is: 2,988,812,477.76
Step by Step Solution
- Step 1: Write the proportion equation
3,974,395,735.95 : 5,484,506,432.74 = 2,165,869,201.33 : x - Step 2: Convert to fraction form
3,974,395,735.95/5,484,506,432.74 = 2,165,869,201.33/x - Step 3: Cross multiply
3,974,395,735.95x = 5,484,506,432.74 × 2,165,869,201.33 - Step 4: Simplify right side
3,974,395,735.95x = 11,878,723,567,167,830,016 - Step 5: Solve for x
x = 11,878,723,567,167,830,016/3,974,395,735.95 - Step 6: Final answer
x = 2,988,812,477.76
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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.