Finding the Fourth Proportional to 1,296,153,927.53, 1,944,235,935.41 and 313,578,890.34
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Solution
The fourth proportional to 1,296,153,927.53, 1,944,235,935.41 and 313,578,890.34 is: 470,369,555.83
Step by Step Solution
- Step 1: Write the proportion equation
1,296,153,927.53 : 1,944,235,935.41 = 313,578,890.34 : x - Step 2: Convert to fraction form
1,296,153,927.53/1,944,235,935.41 = 313,578,890.34/x - Step 3: Cross multiply
1,296,153,927.53x = 1,944,235,935.41 × 313,578,890.34 - Step 4: Simplify right side
1,296,153,927.53x = 609,671,347,183,451,776 - Step 5: Solve for x
x = 609,671,347,183,451,776/1,296,153,927.53 - Step 6: Final answer
x = 470,369,555.83
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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.