Finding the Fourth Proportional to 1,328,714,285.80, 1,993,071,428.70 and 1,252,186,781.80
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Solution
The fourth proportional to 1,328,714,285.80, 1,993,071,428.70 and 1,252,186,781.80 is: 1,878,280,172.70
Step by Step Solution
- Step 1: Write the proportion equation
1,328,714,285.80 : 1,993,071,428.70 = 1,252,186,781.80 : x - Step 2: Convert to fraction form
1,328,714,285.80/1,993,071,428.70 = 1,252,186,781.80/x - Step 3: Cross multiply
1,328,714,285.80x = 1,993,071,428.70 × 1,252,186,781.80 - Step 4: Simplify right side
1,328,714,285.80x = 2,495,697,698,201,381,376 - Step 5: Solve for x
x = 2,495,697,698,201,381,376/1,328,714,285.80 - Step 6: Final answer
x = 1,878,280,172.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.