Home / 61,265,851.20-91,772,805.60-42,118,228.80

Finding the Fourth Proportional to 61,265,851.20, 91,772,805.60 and 42,118,228.80

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Solution

The fourth proportional to 61,265,851.20, 91,772,805.60 and 42,118,228.80 is: 63,090,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,265,851.20 : 91,772,805.60 = 42,118,228.80 : x
  2. Step 2: Convert to fraction form
    61,265,851.20/91,772,805.60 = 42,118,228.80/x
  3. Step 3: Cross multiply
    61,265,851.20x = 91,772,805.60 × 42,118,228.80
  4. Step 4: Simplify right side
    61,265,851.20x = 3,865,308,023,878,721
  5. Step 5: Solve for x
    x = 3,865,308,023,878,721/61,265,851.20
  6. Step 6: Final answer
    x = 63,090,742.20

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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.