Finding the Fourth Proportional to 8,615,545,164.99, 12,919,564,444.05 and 4,576,391,765.10
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Solution
The fourth proportional to 8,615,545,164.99, 12,919,564,444.05 and 4,576,391,765.10 is: 6,862,593,973.82
Step by Step Solution
- Step 1: Write the proportion equation
8,615,545,164.99 : 12,919,564,444.05 = 4,576,391,765.10 : x - Step 2: Convert to fraction form
8,615,545,164.99/12,919,564,444.05 = 4,576,391,765.10/x - Step 3: Cross multiply
8,615,545,164.99x = 12,919,564,444.05 × 4,576,391,765.10 - Step 4: Simplify right side
8,615,545,164.99x = 59,124,988,330,429,177,856 - Step 5: Solve for x
x = 59,124,988,330,429,177,856/8,615,545,164.99 - Step 6: Final answer
x = 6,862,593,973.82
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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.