Home / 456,470,776.61-629,604,934.40-418,915,216.28

Finding the Fourth Proportional to 456,470,776.61, 629,604,934.40 and 418,915,216.28

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Solution

The fourth proportional to 456,470,776.61, 629,604,934.40 and 418,915,216.28 is: 577,804,978.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,470,776.61 : 629,604,934.40 = 418,915,216.28 : x
  2. Step 2: Convert to fraction form
    456,470,776.61/629,604,934.40 = 418,915,216.28/x
  3. Step 3: Cross multiply
    456,470,776.61x = 629,604,934.40 × 418,915,216.28
  4. Step 4: Simplify right side
    456,470,776.61x = 263,751,087,259,888,576
  5. Step 5: Solve for x
    x = 263,751,087,259,888,576/456,470,776.61
  6. Step 6: Final answer
    x = 577,804,978.50

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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.