Finding the Fourth Proportional to 288,459,740.99, 398,075,828.36 and 156,300,702.48
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Solution
The fourth proportional to 288,459,740.99, 398,075,828.36 and 156,300,702.48 is: 215,695,720.31
Step by Step Solution
- Step 1: Write the proportion equation
288,459,740.99 : 398,075,828.36 = 156,300,702.48 : x - Step 2: Convert to fraction form
288,459,740.99/398,075,828.36 = 156,300,702.48/x - Step 3: Cross multiply
288,459,740.99x = 398,075,828.36 × 156,300,702.48 - Step 4: Simplify right side
288,459,740.99x = 62,219,531,612,194,400 - Step 5: Solve for x
x = 62,219,531,612,194,400/288,459,740.99 - Step 6: Final answer
x = 215,695,720.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.