Home / 853,634,653.75-1,177,655,101.81-571,468,004.43

Finding the Fourth Proportional to 853,634,653.75, 1,177,655,101.81 and 571,468,004.43

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Solution

The fourth proportional to 853,634,653.75, 1,177,655,101.81 and 571,468,004.43 is: 788,384,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,634,653.75 : 1,177,655,101.81 = 571,468,004.43 : x
  2. Step 2: Convert to fraction form
    853,634,653.75/1,177,655,101.81 = 571,468,004.43/x
  3. Step 3: Cross multiply
    853,634,653.75x = 1,177,655,101.81 × 571,468,004.43
  4. Step 4: Simplify right side
    853,634,653.75x = 672,992,210,929,423,488
  5. Step 5: Solve for x
    x = 672,992,210,929,423,488/853,634,653.75
  6. Step 6: Final answer
    x = 788,384,360.89

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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.