Home / 31,178,302.20-46,742,570.10-13,212,631.80

Finding the Fourth Proportional to 31,178,302.20, 46,742,570.10 and 13,212,631.80

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Solution

The fourth proportional to 31,178,302.20, 46,742,570.10 and 13,212,631.80 is: 19,808,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178,302.20 : 46,742,570.10 = 13,212,631.80 : x
  2. Step 2: Convert to fraction form
    31,178,302.20/46,742,570.10 = 13,212,631.80/x
  3. Step 3: Cross multiply
    31,178,302.20x = 46,742,570.10 × 13,212,631.80
  4. Step 4: Simplify right side
    31,178,302.20x = 617,592,368,116,989.25
  5. Step 5: Solve for x
    x = 617,592,368,116,989.25/31,178,302.20
  6. Step 6: Final answer
    x = 19,808,402.78

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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.