Home / 618,375,395.61-853,768,966.77-475,065,918.59

Finding the Fourth Proportional to 618,375,395.61, 853,768,966.77 and 475,065,918.59

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Solution

The fourth proportional to 618,375,395.61, 853,768,966.77 and 475,065,918.59 is: 655,906,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,375,395.61 : 853,768,966.77 = 475,065,918.59 : x
  2. Step 2: Convert to fraction form
    618,375,395.61/853,768,966.77 = 475,065,918.59/x
  3. Step 3: Cross multiply
    618,375,395.61x = 853,768,966.77 × 475,065,918.59
  4. Step 4: Simplify right side
    618,375,395.61x = 405,596,538,457,956,352
  5. Step 5: Solve for x
    x = 405,596,538,457,956,352/618,375,395.61
  6. Step 6: Final answer
    x = 655,906,656.92

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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.