Home / 148,598,715.88-205,068,697.68-81,623,866.81

Finding the Fourth Proportional to 148,598,715.88, 205,068,697.68 and 81,623,866.81

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Solution

The fourth proportional to 148,598,715.88, 205,068,697.68 and 81,623,866.81 is: 112,642,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,598,715.88 : 205,068,697.68 = 81,623,866.81 : x
  2. Step 2: Convert to fraction form
    148,598,715.88/205,068,697.68 = 81,623,866.81/x
  3. Step 3: Cross multiply
    148,598,715.88x = 205,068,697.68 × 81,623,866.81
  4. Step 4: Simplify right side
    148,598,715.88x = 16,738,500,066,332,478
  5. Step 5: Solve for x
    x = 16,738,500,066,332,478/148,598,715.88
  6. Step 6: Final answer
    x = 112,642,292.82

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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.