Home / 28,342,130.40-42,513,195.60-18,600,357.60

Finding the Fourth Proportional to 28,342,130.40, 42,513,195.60 and 18,600,357.60

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Solution

The fourth proportional to 28,342,130.40, 42,513,195.60 and 18,600,357.60 is: 27,900,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,130.40 : 42,513,195.60 = 18,600,357.60 : x
  2. Step 2: Convert to fraction form
    28,342,130.40/42,513,195.60 = 18,600,357.60/x
  3. Step 3: Cross multiply
    28,342,130.40x = 42,513,195.60 × 18,600,357.60
  4. Step 4: Simplify right side
    28,342,130.40x = 790,760,640,878,746.62
  5. Step 5: Solve for x
    x = 790,760,640,878,746.62/28,342,130.40
  6. Step 6: Final answer
    x = 27,900,536.40

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1.5x scale

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.