Finding the Fourth Proportional to 1,175,598,981.99, 1,622,326,118.58 and 646,962,966.23
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Solution
The fourth proportional to 1,175,598,981.99, 1,622,326,118.58 and 646,962,966.23 is: 892,808,631.12
Step by Step Solution
- Step 1: Write the proportion equation
1,175,598,981.99 : 1,622,326,118.58 = 646,962,966.23 : x - Step 2: Convert to fraction form
1,175,598,981.99/1,622,326,118.58 = 646,962,966.23/x - Step 3: Cross multiply
1,175,598,981.99x = 1,622,326,118.58 × 646,962,966.23 - Step 4: Simplify right side
1,175,598,981.99x = 1,049,584,917,860,807,936 - Step 5: Solve for x
x = 1,049,584,917,860,807,936/1,175,598,981.99 - Step 6: Final answer
x = 892,808,631.12
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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.