Finding the Fourth Proportional to 1,224,881,764,373.80, 1,690,328,235,895.60 and 668,686,891,275.10
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Solution
The fourth proportional to 1,224,881,764,373.80, 1,690,328,235,895.60 and 668,686,891,275.10 is: 922,783,215,630.12
Step by Step Solution
- Step 1: Write the proportion equation
1,224,881,764,373.80 : 1,690,328,235,895.60 = 668,686,891,275.10 : x - Step 2: Convert to fraction form
1,224,881,764,373.80/1,690,328,235,895.60 = 668,686,891,275.10/x - Step 3: Cross multiply
1,224,881,764,373.80x = 1,690,328,235,895.60 × 668,686,891,275.10 - Step 4: Simplify right side
1,224,881,764,373.80x = 1,130,300,333,295,552,711,098,368 - Step 5: Solve for x
x = 1,130,300,333,295,552,711,098,368/1,224,881,764,373.80 - Step 6: Final answer
x = 922,783,215,630.12
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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.