Home / 1,281,038,890.20-1,917,731,960.10-763,202,779.80

Finding the Fourth Proportional to 1,281,038,890.20, 1,917,731,960.10 and 763,202,779.80

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Solution

The fourth proportional to 1,281,038,890.20, 1,917,731,960.10 and 763,202,779.80 is: 1,142,524,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,038,890.20 : 1,917,731,960.10 = 763,202,779.80 : x
  2. Step 2: Convert to fraction form
    1,281,038,890.20/1,917,731,960.10 = 763,202,779.80/x
  3. Step 3: Cross multiply
    1,281,038,890.20x = 1,917,731,960.10 × 763,202,779.80
  4. Step 4: Simplify right side
    1,281,038,890.20x = 1,463,618,362,859,622,400
  5. Step 5: Solve for x
    x = 1,463,618,362,859,622,400/1,281,038,890.20
  6. Step 6: Final answer
    x = 1,142,524,535.40

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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.