Finding the Fourth Proportional to 1,974,281,430.11, 2,961,755,085.14 and 663,871,982.09
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Solution
The fourth proportional to 1,974,281,430.11, 2,961,755,085.14 and 663,871,982.09 is: 995,919,927.55
Step by Step Solution
- Step 1: Write the proportion equation
1,974,281,430.11 : 2,961,755,085.14 = 663,871,982.09 : x - Step 2: Convert to fraction form
1,974,281,430.11/2,961,755,085.14 = 663,871,982.09/x - Step 3: Cross multiply
1,974,281,430.11x = 2,961,755,085.14 × 663,871,982.09 - Step 4: Simplify right side
1,974,281,430.11x = 1,966,226,218,833,709,312 - Step 5: Solve for x
x = 1,966,226,218,833,709,312/1,974,281,430.11 - Step 6: Final answer
x = 995,919,927.55
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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.