Home / 103,686,642.30-155,529,963.45-65,223,435.90

Finding the Fourth Proportional to 103,686,642.30, 155,529,963.45 and 65,223,435.90

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Solution

The fourth proportional to 103,686,642.30, 155,529,963.45 and 65,223,435.90 is: 97,835,153.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686,642.30 : 155,529,963.45 = 65,223,435.90 : x
  2. Step 2: Convert to fraction form
    103,686,642.30/155,529,963.45 = 65,223,435.90/x
  3. Step 3: Cross multiply
    103,686,642.30x = 155,529,963.45 × 65,223,435.90
  4. Step 4: Simplify right side
    103,686,642.30x = 10,144,198,601,610,416
  5. Step 5: Solve for x
    x = 10,144,198,601,610,416/103,686,642.30
  6. Step 6: Final answer
    x = 97,835,153.85

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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.