Finding the Fourth Proportional to 563,506,307.99, 777,639,619.84 and 312,610,706.31
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Solution
The fourth proportional to 563,506,307.99, 777,639,619.84 and 312,610,706.31 is: 431,403,282.21
Step by Step Solution
- Step 1: Write the proportion equation
563,506,307.99 : 777,639,619.84 = 312,610,706.31 : x - Step 2: Convert to fraction form
563,506,307.99/777,639,619.84 = 312,610,706.31/x - Step 3: Cross multiply
563,506,307.99x = 777,639,619.84 × 312,610,706.31 - Step 4: Simplify right side
563,506,307.99x = 243,098,470,812,040,768 - Step 5: Solve for x
x = 243,098,470,812,040,768/563,506,307.99 - Step 6: Final answer
x = 431,403,282.21
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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.