Home / 8,627,079.95-12,930,779.88-5,390,106

Finding the Fourth Proportional to 8,627,079.95, 12,930,779.88 and 5,390,106

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Solution

The fourth proportional to 8,627,079.95, 12,930,779.88 and 5,390,106 is: 8,079,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627,079.95 : 12,930,779.88 = 5,390,106 : x
  2. Step 2: Convert to fraction form
    8,627,079.95/12,930,779.88 = 5,390,106/x
  3. Step 3: Cross multiply
    8,627,079.95x = 12,930,779.88 × 5,390,106
  4. Step 4: Simplify right side
    8,627,079.95x = 69,698,274,215,867.28
  5. Step 5: Solve for x
    x = 69,698,274,215,867.28/8,627,079.95
  6. Step 6: Final answer
    x = 8,079,011.05

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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.