Home / 42,608,801.60-63,913,202.40-18,720,929.60

Finding the Fourth Proportional to 42,608,801.60, 63,913,202.40 and 18,720,929.60

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Solution

The fourth proportional to 42,608,801.60, 63,913,202.40 and 18,720,929.60 is: 28,081,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,608,801.60 : 63,913,202.40 = 18,720,929.60 : x
  2. Step 2: Convert to fraction form
    42,608,801.60/63,913,202.40 = 18,720,929.60/x
  3. Step 3: Cross multiply
    42,608,801.60x = 63,913,202.40 × 18,720,929.60
  4. Step 4: Simplify right side
    42,608,801.60x = 1,196,514,562,640,951
  5. Step 5: Solve for x
    x = 1,196,514,562,640,951/42,608,801.60
  6. Step 6: Final answer
    x = 28,081,394.40

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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.