Home / 757,807,715.80-1,136,711,573.70-431,290,365.40

Finding the Fourth Proportional to 757,807,715.80, 1,136,711,573.70 and 431,290,365.40

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Solution

The fourth proportional to 757,807,715.80, 1,136,711,573.70 and 431,290,365.40 is: 646,935,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,807,715.80 : 1,136,711,573.70 = 431,290,365.40 : x
  2. Step 2: Convert to fraction form
    757,807,715.80/1,136,711,573.70 = 431,290,365.40/x
  3. Step 3: Cross multiply
    757,807,715.80x = 1,136,711,573.70 × 431,290,365.40
  4. Step 4: Simplify right side
    757,807,715.80x = 490,252,749,975,482,048
  5. Step 5: Solve for x
    x = 490,252,749,975,482,048/757,807,715.80
  6. Step 6: Final answer
    x = 646,935,548.10

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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.