Home / 40,035,700.86-55,249,214.31-21,700,981.50

Finding the Fourth Proportional to 40,035,700.86, 55,249,214.31 and 21,700,981.50

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Solution

The fourth proportional to 40,035,700.86, 55,249,214.31 and 21,700,981.50 is: 29,947,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,035,700.86 : 55,249,214.31 = 21,700,981.50 : x
  2. Step 2: Convert to fraction form
    40,035,700.86/55,249,214.31 = 21,700,981.50/x
  3. Step 3: Cross multiply
    40,035,700.86x = 55,249,214.31 × 21,700,981.50
  4. Step 4: Simplify right side
    40,035,700.86x = 1,198,962,177,630,845.25
  5. Step 5: Solve for x
    x = 1,198,962,177,630,845.25/40,035,700.86
  6. Step 6: Final answer
    x = 29,947,325.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.