Home / 39,533,815.45-54,518,337.81-30,828,811.87

Finding the Fourth Proportional to 39,533,815.45, 54,518,337.81 and 30,828,811.87

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Solution

The fourth proportional to 39,533,815.45, 54,518,337.81 and 30,828,811.87 is: 42,513,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,533,815.45 : 54,518,337.81 = 30,828,811.87 : x
  2. Step 2: Convert to fraction form
    39,533,815.45/54,518,337.81 = 30,828,811.87/x
  3. Step 3: Cross multiply
    39,533,815.45x = 54,518,337.81 × 30,828,811.87
  4. Step 4: Simplify right side
    39,533,815.45x = 1,680,735,579,809,598
  5. Step 5: Solve for x
    x = 1,680,735,579,809,598/39,533,815.45
  6. Step 6: Final answer
    x = 42,513,872.26

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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.