Finding the Fourth Proportional to 845,721,840.16, 1,167,104,098.74 and 474,451,840.72
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Solution
The fourth proportional to 845,721,840.16, 1,167,104,098.74 and 474,451,840.72 is: 654,748,005.39
Step by Step Solution
- Step 1: Write the proportion equation
845,721,840.16 : 1,167,104,098.74 = 474,451,840.72 : x - Step 2: Convert to fraction form
845,721,840.16/1,167,104,098.74 = 474,451,840.72/x - Step 3: Cross multiply
845,721,840.16x = 1,167,104,098.74 × 474,451,840.72 - Step 4: Simplify right side
845,721,840.16x = 553,734,687,959,049,664 - Step 5: Solve for x
x = 553,734,687,959,049,664/845,721,840.16 - Step 6: Final answer
x = 654,748,005.39
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Double scale
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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.