Home / 28,128,987.52-42,164,708.86-19,032,045.60

Finding the Fourth Proportional to 28,128,987.52, 42,164,708.86 and 19,032,045.60

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Solution

The fourth proportional to 28,128,987.52, 42,164,708.86 and 19,032,045.60 is: 28,528,601.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128,987.52 : 42,164,708.86 = 19,032,045.60 : x
  2. Step 2: Convert to fraction form
    28,128,987.52/42,164,708.86 = 19,032,045.60/x
  3. Step 3: Cross multiply
    28,128,987.52x = 42,164,708.86 × 19,032,045.60
  4. Step 4: Simplify right side
    28,128,987.52x = 802,480,661,734,244.12
  5. Step 5: Solve for x
    x = 802,480,661,734,244.12/28,128,987.52
  6. Step 6: Final answer
    x = 28,528,601.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.