Home / 14,025,981.76-19,355,041.57-7,831,420.68

Finding the Fourth Proportional to 14,025,981.76, 19,355,041.57 and 7,831,420.68

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Solution

The fourth proportional to 14,025,981.76, 19,355,041.57 and 7,831,420.68 is: 10,806,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,025,981.76 : 19,355,041.57 = 7,831,420.68 : x
  2. Step 2: Convert to fraction form
    14,025,981.76/19,355,041.57 = 7,831,420.68/x
  3. Step 3: Cross multiply
    14,025,981.76x = 19,355,041.57 × 7,831,420.68
  4. Step 4: Simplify right side
    14,025,981.76x = 151,577,472,813,557.66
  5. Step 5: Solve for x
    x = 151,577,472,813,557.66/14,025,981.76
  6. Step 6: Final answer
    x = 10,806,906.45

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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.