Home / 130,759,918.72-180,448,679.28-75,787,661.68

Finding the Fourth Proportional to 130,759,918.72, 180,448,679.28 and 75,787,661.68

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Solution

The fourth proportional to 130,759,918.72, 180,448,679.28 and 75,787,661.68 is: 104,586,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,759,918.72 : 180,448,679.28 = 75,787,661.68 : x
  2. Step 2: Convert to fraction form
    130,759,918.72/180,448,679.28 = 75,787,661.68/x
  3. Step 3: Cross multiply
    130,759,918.72x = 180,448,679.28 × 75,787,661.68
  4. Step 4: Simplify right side
    130,759,918.72x = 13,675,783,455,875,468
  5. Step 5: Solve for x
    x = 13,675,783,455,875,468/130,759,918.72
  6. Step 6: Final answer
    x = 104,586,968.16

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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.