Finding the Fourth Proportional to 1,080,326,373.20, 1,490,830,961.40 and 610,417,605.08
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Solution
The fourth proportional to 1,080,326,373.20, 1,490,830,961.40 and 610,417,605.08 is: 842,365,314.42
Step by Step Solution
- Step 1: Write the proportion equation
1,080,326,373.20 : 1,490,830,961.40 = 610,417,605.08 : x - Step 2: Convert to fraction form
1,080,326,373.20/1,490,830,961.40 = 610,417,605.08/x - Step 3: Cross multiply
1,080,326,373.20x = 1,490,830,961.40 × 610,417,605.08 - Step 4: Simplify right side
1,080,326,373.20x = 910,029,465,029,447,936 - Step 5: Solve for x
x = 910,029,465,029,447,936/1,080,326,373.20 - Step 6: Final answer
x = 842,365,314.42
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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.