Finding the Fourth Proportional to 1,957,163,312.90, 2,700,974,309.86 and 1,153,424,731.43
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Solution
The fourth proportional to 1,957,163,312.90, 2,700,974,309.86 and 1,153,424,731.43 is: 1,591,778,543.68
Step by Step Solution
- Step 1: Write the proportion equation
1,957,163,312.90 : 2,700,974,309.86 = 1,153,424,731.43 : x - Step 2: Convert to fraction form
1,957,163,312.90/2,700,974,309.86 = 1,153,424,731.43/x - Step 3: Cross multiply
1,957,163,312.90x = 2,700,974,309.86 × 1,153,424,731.43 - Step 4: Simplify right side
1,957,163,312.90x = 3,115,370,567,949,600,256 - Step 5: Solve for x
x = 3,115,370,567,949,600,256/1,957,163,312.90 - Step 6: Final answer
x = 1,591,778,543.68
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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.