Finding the Fourth Proportional to 1,745,791,258.40, 2,619,031,860.16 and 640,406,381.12
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Solution
The fourth proportional to 1,745,791,258.40, 2,619,031,860.16 and 640,406,381.12 is: 960,736,117.52
Step by Step Solution
- Step 1: Write the proportion equation
1,745,791,258.40 : 2,619,031,860.16 = 640,406,381.12 : x - Step 2: Convert to fraction form
1,745,791,258.40/2,619,031,860.16 = 640,406,381.12/x - Step 3: Cross multiply
1,745,791,258.40x = 2,619,031,860.16 × 640,406,381.12 - Step 4: Simplify right side
1,745,791,258.40x = 1,677,244,715,603,047,424 - Step 5: Solve for x
x = 1,677,244,715,603,047,424/1,745,791,258.40 - Step 6: Final answer
x = 960,736,117.52
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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.