Finding the Fourth Proportional to 1,238,306,419.60, 1,708,211,657.88 and 736,158,012.14
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Solution
The fourth proportional to 1,238,306,419.60, 1,708,211,657.88 and 736,158,012.14 is: 1,015,510,925.63
Step by Step Solution
- Step 1: Write the proportion equation
1,238,306,419.60 : 1,708,211,657.88 = 736,158,012.14 : x - Step 2: Convert to fraction form
1,238,306,419.60/1,708,211,657.88 = 736,158,012.14/x - Step 3: Cross multiply
1,238,306,419.60x = 1,708,211,657.88 × 736,158,012.14 - Step 4: Simplify right side
1,238,306,419.60x = 1,257,513,698,383,585,280 - Step 5: Solve for x
x = 1,257,513,698,383,585,280/1,238,306,419.60 - Step 6: Final answer
x = 1,015,510,925.63
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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.