Home / 12,756,045.20-19,127,501.40-3,779,430.80

Finding the Fourth Proportional to 12,756,045.20, 19,127,501.40 and 3,779,430.80

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Solution

The fourth proportional to 12,756,045.20, 19,127,501.40 and 3,779,430.80 is: 5,667,200.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,045.20 : 19,127,501.40 = 3,779,430.80 : x
  2. Step 2: Convert to fraction form
    12,756,045.20/19,127,501.40 = 3,779,430.80/x
  3. Step 3: Cross multiply
    12,756,045.20x = 19,127,501.40 × 3,779,430.80
  4. Step 4: Simplify right side
    12,756,045.20x = 72,291,067,918,203.11
  5. Step 5: Solve for x
    x = 72,291,067,918,203.11/12,756,045.20
  6. Step 6: Final answer
    x = 5,667,200.67

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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.