Home / 81,942,410.16-122,921,888.51-26,607,931.45

Finding the Fourth Proportional to 81,942,410.16, 122,921,888.51 and 26,607,931.45

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Solution

The fourth proportional to 81,942,410.16, 122,921,888.51 and 26,607,931.45 is: 39,914,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942,410.16 : 122,921,888.51 = 26,607,931.45 : x
  2. Step 2: Convert to fraction form
    81,942,410.16/122,921,888.51 = 26,607,931.45/x
  3. Step 3: Cross multiply
    81,942,410.16x = 122,921,888.51 × 26,607,931.45
  4. Step 4: Simplify right side
    81,942,410.16x = 3,270,697,182,937,838
  5. Step 5: Solve for x
    x = 3,270,697,182,937,838/81,942,410.16
  6. Step 6: Final answer
    x = 39,914,583.63

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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.