Finding the Fourth Proportional to 1,378,637,022.80, 2,068,963,303.80 and 970,490,334.80
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Solution
The fourth proportional to 1,378,637,022.80, 2,068,963,303.80 and 970,490,334.80 is: 1,456,444,920.73
Step by Step Solution
- Step 1: Write the proportion equation
1,378,637,022.80 : 2,068,963,303.80 = 970,490,334.80 : x - Step 2: Convert to fraction form
1,378,637,022.80/2,068,963,303.80 = 970,490,334.80/x - Step 3: Cross multiply
1,378,637,022.80x = 2,068,963,303.80 × 970,490,334.80 - Step 4: Simplify right side
1,378,637,022.80x = 2,007,908,889,393,775,872 - Step 5: Solve for x
x = 2,007,908,889,393,775,872/1,378,637,022.80 - Step 6: Final answer
x = 1,456,444,920.73
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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.