Home / 74,602,209.40-111,903,314.10-20,749,521.40

Finding the Fourth Proportional to 74,602,209.40, 111,903,314.10 and 20,749,521.40

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Solution

The fourth proportional to 74,602,209.40, 111,903,314.10 and 20,749,521.40 is: 31,124,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,602,209.40 : 111,903,314.10 = 20,749,521.40 : x
  2. Step 2: Convert to fraction form
    74,602,209.40/111,903,314.10 = 20,749,521.40/x
  3. Step 3: Cross multiply
    74,602,209.40x = 111,903,314.10 × 20,749,521.40
  4. Step 4: Simplify right side
    74,602,209.40x = 2,321,940,210,648,871.50
  5. Step 5: Solve for x
    x = 2,321,940,210,648,871.50/74,602,209.40
  6. Step 6: Final answer
    x = 31,124,282.10

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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.