Home / 8,143,205.40-12,224,139.30-4,779,307.80

Finding the Fourth Proportional to 8,143,205.40, 12,224,139.30 and 4,779,307.80

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Solution

The fourth proportional to 8,143,205.40, 12,224,139.30 and 4,779,307.80 is: 7,174,438.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,205.40 : 12,224,139.30 = 4,779,307.80 : x
  2. Step 2: Convert to fraction form
    8,143,205.40/12,224,139.30 = 4,779,307.80/x
  3. Step 3: Cross multiply
    8,143,205.40x = 12,224,139.30 × 4,779,307.80
  4. Step 4: Simplify right side
    8,143,205.40x = 58,422,924,304,776.54
  5. Step 5: Solve for x
    x = 58,422,924,304,776.54/8,143,205.40
  6. Step 6: Final answer
    x = 7,174,438.25

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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.