Finding the Fourth Proportional to 812,740,332.06, 1,121,674,701.66 and 455,604,567.51
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Solution
The fourth proportional to 812,740,332.06, 1,121,674,701.66 and 455,604,567.51 is: 628,786,461.28
Step by Step Solution
- Step 1: Write the proportion equation
812,740,332.06 : 1,121,674,701.66 = 455,604,567.51 : x - Step 2: Convert to fraction form
812,740,332.06/1,121,674,701.66 = 455,604,567.51/x - Step 3: Cross multiply
812,740,332.06x = 1,121,674,701.66 × 455,604,567.51 - Step 4: Simplify right side
812,740,332.06x = 511,040,117,336,712,576 - Step 5: Solve for x
x = 511,040,117,336,712,576/812,740,332.06 - Step 6: Final answer
x = 628,786,461.28
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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.