Home / 509,611,927.20-764,417,890.80-433,084,423.20

Finding the Fourth Proportional to 509,611,927.20, 764,417,890.80 and 433,084,423.20

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Solution

The fourth proportional to 509,611,927.20, 764,417,890.80 and 433,084,423.20 is: 649,626,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,611,927.20 : 764,417,890.80 = 433,084,423.20 : x
  2. Step 2: Convert to fraction form
    509,611,927.20/764,417,890.80 = 433,084,423.20/x
  3. Step 3: Cross multiply
    509,611,927.20x = 764,417,890.80 × 433,084,423.20
  4. Step 4: Simplify right side
    509,611,927.20x = 331,057,481,320,878,528
  5. Step 5: Solve for x
    x = 331,057,481,320,878,528/509,611,927.20
  6. Step 6: Final answer
    x = 649,626,634.80

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1.5x scale

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.