Home / 751,806,667.06-1,128,817,012.61-420,462,854.71

Finding the Fourth Proportional to 751,806,667.06, 1,128,817,012.61 and 420,462,854.71

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Solution

The fourth proportional to 751,806,667.06, 1,128,817,012.61 and 420,462,854.71 is: 631,313,400.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,806,667.06 : 1,128,817,012.61 = 420,462,854.71 : x
  2. Step 2: Convert to fraction form
    751,806,667.06/1,128,817,012.61 = 420,462,854.71/x
  3. Step 3: Cross multiply
    751,806,667.06x = 1,128,817,012.61 × 420,462,854.71
  4. Step 4: Simplify right side
    751,806,667.06x = 474,625,623,567,214,592
  5. Step 5: Solve for x
    x = 474,625,623,567,214,592/751,806,667.06
  6. Step 6: Final answer
    x = 631,313,400.59

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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.