Finding the Fourth Proportional to 868,971,166.63, 1,303,334,026.52 and 278,684,702.34
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Solution
The fourth proportional to 868,971,166.63, 1,303,334,026.52 and 278,684,702.34 is: 417,987,695.31
Step by Step Solution
- Step 1: Write the proportion equation
868,971,166.63 : 1,303,334,026.52 = 278,684,702.34 : x - Step 2: Convert to fraction form
868,971,166.63/1,303,334,026.52 = 278,684,702.34/x - Step 3: Cross multiply
868,971,166.63x = 1,303,334,026.52 × 278,684,702.34 - Step 4: Simplify right side
868,971,166.63x = 363,219,255,230,319,808 - Step 5: Solve for x
x = 363,219,255,230,319,808/868,971,166.63 - Step 6: Final answer
x = 417,987,695.31
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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.