Home / 101,403,718.87-139,944,648.44-56,754,156.51

Finding the Fourth Proportional to 101,403,718.87, 139,944,648.44 and 56,754,156.51

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Solution

The fourth proportional to 101,403,718.87, 139,944,648.44 and 56,754,156.51 is: 78,324,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,403,718.87 : 139,944,648.44 = 56,754,156.51 : x
  2. Step 2: Convert to fraction form
    101,403,718.87/139,944,648.44 = 56,754,156.51/x
  3. Step 3: Cross multiply
    101,403,718.87x = 139,944,648.44 × 56,754,156.51
  4. Step 4: Simplify right side
    101,403,718.87x = 7,942,440,480,300,687
  5. Step 5: Solve for x
    x = 7,942,440,480,300,687/101,403,718.87
  6. Step 6: Final answer
    x = 78,324,942.80

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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.