Home / 87,918,593.67-121,216,157.78-62,830,667.79

Finding the Fourth Proportional to 87,918,593.67, 121,216,157.78 and 62,830,667.79

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Solution

The fourth proportional to 87,918,593.67, 121,216,157.78 and 62,830,667.79 is: 86,626,637.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,918,593.67 : 121,216,157.78 = 62,830,667.79 : x
  2. Step 2: Convert to fraction form
    87,918,593.67/121,216,157.78 = 62,830,667.79/x
  3. Step 3: Cross multiply
    87,918,593.67x = 121,216,157.78 × 62,830,667.79
  4. Step 4: Simplify right side
    87,918,593.67x = 7,616,092,139,941,251
  5. Step 5: Solve for x
    x = 7,616,092,139,941,251/87,918,593.67
  6. Step 6: Final answer
    x = 86,626,637.46

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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.