Finding the Fourth Proportional to 1,393,726,991.06, 1,923,382,895.85 and 758,688,437.12
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Solution
The fourth proportional to 1,393,726,991.06, 1,923,382,895.85 and 758,688,437.12 is: 1,047,011,626.08
Step by Step Solution
- Step 1: Write the proportion equation
1,393,726,991.06 : 1,923,382,895.85 = 758,688,437.12 : x - Step 2: Convert to fraction form
1,393,726,991.06/1,923,382,895.85 = 758,688,437.12/x - Step 3: Cross multiply
1,393,726,991.06x = 1,923,382,895.85 × 758,688,437.12 - Step 4: Simplify right side
1,393,726,991.06x = 1,459,248,363,226,159,360 - Step 5: Solve for x
x = 1,459,248,363,226,159,360/1,393,726,991.06 - Step 6: Final answer
x = 1,047,011,626.08
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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.