Finding the Fourth Proportional to 842,798,848.96, 1,163,064,899.88 and 466,481,574.08
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Solution
The fourth proportional to 842,798,848.96, 1,163,064,899.88 and 466,481,574.08 is: 643,745,949.49
Step by Step Solution
- Step 1: Write the proportion equation
842,798,848.96 : 1,163,064,899.88 = 466,481,574.08 : x - Step 2: Convert to fraction form
842,798,848.96/1,163,064,899.88 = 466,481,574.08/x - Step 3: Cross multiply
842,798,848.96x = 1,163,064,899.88 × 466,481,574.08 - Step 4: Simplify right side
842,798,848.96x = 542,548,345,253,220,032 - Step 5: Solve for x
x = 542,548,345,253,220,032/842,798,848.96 - Step 6: Final answer
x = 643,745,949.49
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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.