Home / 413,039,271.80-619,558,907.70-388,805,562.20

Finding the Fourth Proportional to 413,039,271.80, 619,558,907.70 and 388,805,562.20

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Solution

The fourth proportional to 413,039,271.80, 619,558,907.70 and 388,805,562.20 is: 583,208,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,039,271.80 : 619,558,907.70 = 388,805,562.20 : x
  2. Step 2: Convert to fraction form
    413,039,271.80/619,558,907.70 = 388,805,562.20/x
  3. Step 3: Cross multiply
    413,039,271.80x = 619,558,907.70 × 388,805,562.20
  4. Step 4: Simplify right side
    413,039,271.80x = 240,887,949,424,316,416
  5. Step 5: Solve for x
    x = 240,887,949,424,316,416/413,039,271.80
  6. Step 6: Final answer
    x = 583,208,343.30

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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.