Home / 75,272,498.10-112,909,985.10-20,684,742.30

Finding the Fourth Proportional to 75,272,498.10, 112,909,985.10 and 20,684,742.30

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Solution

The fourth proportional to 75,272,498.10, 112,909,985.10 and 20,684,742.30 is: 31,027,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272,498.10 : 112,909,985.10 = 20,684,742.30 : x
  2. Step 2: Convert to fraction form
    75,272,498.10/112,909,985.10 = 20,684,742.30/x
  3. Step 3: Cross multiply
    75,272,498.10x = 112,909,985.10 × 20,684,742.30
  4. Step 4: Simplify right side
    75,272,498.10x = 2,335,513,944,890,339.50
  5. Step 5: Solve for x
    x = 2,335,513,944,890,339.50/75,272,498.10
  6. Step 6: Final answer
    x = 31,027,453.64

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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.