Home / 30,506,430.87-45,759,631.73-7,787,320.83

Finding the Fourth Proportional to 30,506,430.87, 45,759,631.73 and 7,787,320.83

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Solution

The fourth proportional to 30,506,430.87, 45,759,631.73 and 7,787,320.83 is: 11,680,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506,430.87 : 45,759,631.73 = 7,787,320.83 : x
  2. Step 2: Convert to fraction form
    30,506,430.87/45,759,631.73 = 7,787,320.83/x
  3. Step 3: Cross multiply
    30,506,430.87x = 45,759,631.73 × 7,787,320.83
  4. Step 4: Simplify right side
    30,506,430.87x = 356,344,933,305,221.38
  5. Step 5: Solve for x
    x = 356,344,933,305,221.38/30,506,430.87
  6. Step 6: Final answer
    x = 11,680,977.52

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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.