Home / 220,845,980.69-304,749,532.81-128,032,467.24

Finding the Fourth Proportional to 220,845,980.69, 304,749,532.81 and 128,032,467.24

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Solution

The fourth proportional to 220,845,980.69, 304,749,532.81 and 128,032,467.24 is: 176,674,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,845,980.69 : 304,749,532.81 = 128,032,467.24 : x
  2. Step 2: Convert to fraction form
    220,845,980.69/304,749,532.81 = 128,032,467.24/x
  3. Step 3: Cross multiply
    220,845,980.69x = 304,749,532.81 × 128,032,467.24
  4. Step 4: Simplify right side
    220,845,980.69x = 39,017,834,577,204,480
  5. Step 5: Solve for x
    x = 39,017,834,577,204,480/220,845,980.69
  6. Step 6: Final answer
    x = 176,674,415.61

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1.5x scale

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.