Finding the Fourth Proportional to 1,299,962,510.06, 1,793,951,741.08 and 705,246,994.40
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Solution
The fourth proportional to 1,299,962,510.06, 1,793,951,741.08 and 705,246,994.40 is: 973,242,738.70
Step by Step Solution
- Step 1: Write the proportion equation
1,299,962,510.06 : 1,793,951,741.08 = 705,246,994.40 : x - Step 2: Convert to fraction form
1,299,962,510.06/1,793,951,741.08 = 705,246,994.40/x - Step 3: Cross multiply
1,299,962,510.06x = 1,793,951,741.08 × 705,246,994.40 - Step 4: Simplify right side
1,299,962,510.06x = 1,265,179,073,495,316,992 - Step 5: Solve for x
x = 1,265,179,073,495,316,992/1,299,962,510.06 - Step 6: Final answer
x = 973,242,738.70
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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.