Home / 772,522,004.88-1,066,087,957.86-420,105,653.76

Finding the Fourth Proportional to 772,522,004.88, 1,066,087,957.86 and 420,105,653.76

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Solution

The fourth proportional to 772,522,004.88, 1,066,087,957.86 and 420,105,653.76 is: 579,749,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,522,004.88 : 1,066,087,957.86 = 420,105,653.76 : x
  2. Step 2: Convert to fraction form
    772,522,004.88/1,066,087,957.86 = 420,105,653.76/x
  3. Step 3: Cross multiply
    772,522,004.88x = 1,066,087,957.86 × 420,105,653.76
  4. Step 4: Simplify right side
    772,522,004.88x = 447,869,578,502,438,656
  5. Step 5: Solve for x
    x = 447,869,578,502,438,656/772,522,004.88
  6. Step 6: Final answer
    x = 579,749,930.32

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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.