Home / 13,429,205.80-20,143,808.70-9,390,254.20

Finding the Fourth Proportional to 13,429,205.80, 20,143,808.70 and 9,390,254.20

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Solution

The fourth proportional to 13,429,205.80, 20,143,808.70 and 9,390,254.20 is: 14,085,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429,205.80 : 20,143,808.70 = 9,390,254.20 : x
  2. Step 2: Convert to fraction form
    13,429,205.80/20,143,808.70 = 9,390,254.20/x
  3. Step 3: Cross multiply
    13,429,205.80x = 20,143,808.70 × 9,390,254.20
  4. Step 4: Simplify right side
    13,429,205.80x = 189,155,484,249,171.53
  5. Step 5: Solve for x
    x = 189,155,484,249,171.53/13,429,205.80
  6. Step 6: Final answer
    x = 14,085,381.30

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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.