Home / 53,992,878.20-80,996,421.30-19,938,145.40

Finding the Fourth Proportional to 53,992,878.20, 80,996,421.30 and 19,938,145.40

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Solution

The fourth proportional to 53,992,878.20, 80,996,421.30 and 19,938,145.40 is: 29,909,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,992,878.20 : 80,996,421.30 = 19,938,145.40 : x
  2. Step 2: Convert to fraction form
    53,992,878.20/80,996,421.30 = 19,938,145.40/x
  3. Step 3: Cross multiply
    53,992,878.20x = 80,996,421.30 × 19,938,145.40
  4. Step 4: Simplify right side
    53,992,878.20x = 1,614,918,424,759,056.75
  5. Step 5: Solve for x
    x = 1,614,918,424,759,056.75/53,992,878.20
  6. Step 6: Final answer
    x = 29,909,841.42

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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.