Home / 31,178,312.70-46,742,585.85-13,212,642.30

Finding the Fourth Proportional to 31,178,312.70, 46,742,585.85 and 13,212,642.30

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Solution

The fourth proportional to 31,178,312.70, 46,742,585.85 and 13,212,642.30 is: 19,808,418.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178,312.70 : 46,742,585.85 = 13,212,642.30 : x
  2. Step 2: Convert to fraction form
    31,178,312.70/46,742,585.85 = 13,212,642.30/x
  3. Step 3: Cross multiply
    31,178,312.70x = 46,742,585.85 × 13,212,642.30
  4. Step 4: Simplify right side
    31,178,312.70x = 617,593,067,013,091.50
  5. Step 5: Solve for x
    x = 617,593,067,013,091.50/31,178,312.70
  6. Step 6: Final answer
    x = 19,808,418.53

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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.