Home / 87,827,762.85-121,162,568.81-53,009,323.17

Finding the Fourth Proportional to 87,827,762.85, 121,162,568.81 and 53,009,323.17

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Solution

The fourth proportional to 87,827,762.85, 121,162,568.81 and 53,009,323.17 is: 73,128,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,827,762.85 : 121,162,568.81 = 53,009,323.17 : x
  2. Step 2: Convert to fraction form
    87,827,762.85/121,162,568.81 = 53,009,323.17/x
  3. Step 3: Cross multiply
    87,827,762.85x = 121,162,568.81 × 53,009,323.17
  4. Step 4: Simplify right side
    87,827,762.85x = 6,422,745,765,550,840
  5. Step 5: Solve for x
    x = 6,422,745,765,550,840/87,827,762.85
  6. Step 6: Final answer
    x = 73,128,878.13

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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.