Finding the Fourth Proportional to 1,512,675,710.76, 2,087,492,484.84 and 817,314,686.76
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Solution
The fourth proportional to 1,512,675,710.76, 2,087,492,484.84 and 817,314,686.76 is: 1,127,894,269.89
Step by Step Solution
- Step 1: Write the proportion equation
1,512,675,710.76 : 2,087,492,484.84 = 817,314,686.76 : x - Step 2: Convert to fraction form
1,512,675,710.76/2,087,492,484.84 = 817,314,686.76/x - Step 3: Cross multiply
1,512,675,710.76x = 2,087,492,484.84 × 817,314,686.76 - Step 4: Simplify right side
1,512,675,710.76x = 1,706,138,266,360,858,624 - Step 5: Solve for x
x = 1,706,138,266,360,858,624/1,512,675,710.76 - Step 6: Final answer
x = 1,127,894,269.89
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1.5x scale
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.