Home / 138,700,603.05-191,409,923.55-79,160,703.90

Finding the Fourth Proportional to 138,700,603.05, 191,409,923.55 and 79,160,703.90

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Solution

The fourth proportional to 138,700,603.05, 191,409,923.55 and 79,160,703.90 is: 109,243,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,700,603.05 : 191,409,923.55 = 79,160,703.90 : x
  2. Step 2: Convert to fraction form
    138,700,603.05/191,409,923.55 = 79,160,703.90/x
  3. Step 3: Cross multiply
    138,700,603.05x = 191,409,923.55 × 79,160,703.90
  4. Step 4: Simplify right side
    138,700,603.05x = 15,152,144,281,663,188
  5. Step 5: Solve for x
    x = 15,152,144,281,663,188/138,700,603.05
  6. Step 6: Final answer
    x = 109,243,535.71

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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.