Home / 220,845,987.03-304,749,541.56-128,032,473.60

Finding the Fourth Proportional to 220,845,987.03, 304,749,541.56 and 128,032,473.60

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Solution

The fourth proportional to 220,845,987.03, 304,749,541.56 and 128,032,473.60 is: 176,674,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,845,987.03 : 304,749,541.56 = 128,032,473.60 : x
  2. Step 2: Convert to fraction form
    220,845,987.03/304,749,541.56 = 128,032,473.60/x
  3. Step 3: Cross multiply
    220,845,987.03x = 304,749,541.56 × 128,032,473.60
  4. Step 4: Simplify right side
    220,845,987.03x = 39,017,837,634,392,800
  5. Step 5: Solve for x
    x = 39,017,837,634,392,800/220,845,987.03
  6. Step 6: Final answer
    x = 176,674,424.38

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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.