Home / 2,620,404,779.70-3,930,607,169.55-1,242,909,707.70

Finding the Fourth Proportional to 2,620,404,779.70, 3,930,607,169.55 and 1,242,909,707.70

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Solution

The fourth proportional to 2,620,404,779.70, 3,930,607,169.55 and 1,242,909,707.70 is: 1,864,364,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,404,779.70 : 3,930,607,169.55 = 1,242,909,707.70 : x
  2. Step 2: Convert to fraction form
    2,620,404,779.70/3,930,607,169.55 = 1,242,909,707.70/x
  3. Step 3: Cross multiply
    2,620,404,779.70x = 3,930,607,169.55 × 1,242,909,707.70
  4. Step 4: Simplify right side
    2,620,404,779.70x = 4,885,389,808,188,915,712
  5. Step 5: Solve for x
    x = 4,885,389,808,188,915,712/2,620,404,779.70
  6. Step 6: Final answer
    x = 1,864,364,561.55

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Double scale
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1.5x scale

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.