Home / 72,792,044.20-109,188,066.30-67,249,311.40

Finding the Fourth Proportional to 72,792,044.20, 109,188,066.30 and 67,249,311.40

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Solution

The fourth proportional to 72,792,044.20, 109,188,066.30 and 67,249,311.40 is: 100,873,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,792,044.20 : 109,188,066.30 = 67,249,311.40 : x
  2. Step 2: Convert to fraction form
    72,792,044.20/109,188,066.30 = 67,249,311.40/x
  3. Step 3: Cross multiply
    72,792,044.20x = 109,188,066.30 × 67,249,311.40
  4. Step 4: Simplify right side
    72,792,044.20x = 7,342,822,271,772,546
  5. Step 5: Solve for x
    x = 7,342,822,271,772,546/72,792,044.20
  6. Step 6: Final answer
    x = 100,873,967.10

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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.