Finding the Fourth Proportional to 2,020,854,415.60, 3,031,281,623.40 and 915,988,576.60
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Solution
The fourth proportional to 2,020,854,415.60, 3,031,281,623.40 and 915,988,576.60 is: 1,373,982,864.90
Step by Step Solution
- Step 1: Write the proportion equation
2,020,854,415.60 : 3,031,281,623.40 = 915,988,576.60 : x - Step 2: Convert to fraction form
2,020,854,415.60/3,031,281,623.40 = 915,988,576.60/x - Step 3: Cross multiply
2,020,854,415.60x = 3,031,281,623.40 × 915,988,576.60 - Step 4: Simplify right side
2,020,854,415.60x = 2,776,619,339,491,903,488 - Step 5: Solve for x
x = 2,776,619,339,491,903,488/2,020,854,415.60 - Step 6: Final answer
x = 1,373,982,864.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.