Finding the Fourth Proportional to 1,175,153,445.80, 1,762,730,168.70 and 830,779,677.80
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Solution
The fourth proportional to 1,175,153,445.80, 1,762,730,168.70 and 830,779,677.80 is: 1,246,169,516.70
Step by Step Solution
- Step 1: Write the proportion equation
1,175,153,445.80 : 1,762,730,168.70 = 830,779,677.80 : x - Step 2: Convert to fraction form
1,175,153,445.80/1,762,730,168.70 = 830,779,677.80/x - Step 3: Cross multiply
1,175,153,445.80x = 1,762,730,168.70 × 830,779,677.80 - Step 4: Simplify right side
1,175,153,445.80x = 1,464,440,401,600,925,696 - Step 5: Solve for x
x = 1,464,440,401,600,925,696/1,175,153,445.80 - Step 6: Final answer
x = 1,246,169,516.70
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1.5x scale
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.