Home / 1,126,184,863.50-1,690,249,832.28-781,380,628.29

Finding the Fourth Proportional to 1,126,184,863.50, 1,690,249,832.28 and 781,380,628.29

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Solution

The fourth proportional to 1,126,184,863.50, 1,690,249,832.28 and 781,380,628.29 is: 1,172,745,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,184,863.50 : 1,690,249,832.28 = 781,380,628.29 : x
  2. Step 2: Convert to fraction form
    1,126,184,863.50/1,690,249,832.28 = 781,380,628.29/x
  3. Step 3: Cross multiply
    1,126,184,863.50x = 1,690,249,832.28 × 781,380,628.29
  4. Step 4: Simplify right side
    1,126,184,863.50x = 1,320,728,475,914,013,440
  5. Step 5: Solve for x
    x = 1,320,728,475,914,013,440/1,126,184,863.50
  6. Step 6: Final answer
    x = 1,172,745,717.62

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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.