Finding the Fourth Proportional to 7,260,454,811.70, 10,890,682,217.55 and 7,099,211,675.70
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Solution
The fourth proportional to 7,260,454,811.70, 10,890,682,217.55 and 7,099,211,675.70 is: 10,648,817,513.55
Step by Step Solution
- Step 1: Write the proportion equation
7,260,454,811.70 : 10,890,682,217.55 = 7,099,211,675.70 : x - Step 2: Convert to fraction form
7,260,454,811.70/10,890,682,217.55 = 7,099,211,675.70/x - Step 3: Cross multiply
7,260,454,811.70x = 10,890,682,217.55 × 7,099,211,675.70 - Step 4: Simplify right side
7,260,454,811.70x = 77,315,258,355,169,312,768 - Step 5: Solve for x
x = 77,315,258,355,169,312,768/7,260,454,811.70 - Step 6: Final answer
x = 10,648,817,513.55
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Double scale
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Similar ratio
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1.5x scale
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.