Finding the Fourth Proportional to 851,962,208.40, 1,277,943,312.60 and 760,129,203.60
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Solution
The fourth proportional to 851,962,208.40, 1,277,943,312.60 and 760,129,203.60 is: 1,140,193,805.40
Step by Step Solution
- Step 1: Write the proportion equation
851,962,208.40 : 1,277,943,312.60 = 760,129,203.60 : x - Step 2: Convert to fraction form
851,962,208.40/1,277,943,312.60 = 760,129,203.60/x - Step 3: Cross multiply
851,962,208.40x = 1,277,943,312.60 × 760,129,203.60 - Step 4: Simplify right side
851,962,208.40x = 971,402,032,452,583,808 - Step 5: Solve for x
x = 971,402,032,452,583,808/851,962,208.40 - Step 6: Final answer
x = 1,140,193,805.40
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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.