Home / 1,126,184,705.68-1,690,249,595.57-781,380,470.47

Finding the Fourth Proportional to 1,126,184,705.68, 1,690,249,595.57 and 781,380,470.47

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Solution

The fourth proportional to 1,126,184,705.68, 1,690,249,595.57 and 781,380,470.47 is: 1,172,745,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,184,705.68 : 1,690,249,595.57 = 781,380,470.47 : x
  2. Step 2: Convert to fraction form
    1,126,184,705.68/1,690,249,595.57 = 781,380,470.47/x
  3. Step 3: Cross multiply
    1,126,184,705.68x = 1,690,249,595.57 × 781,380,470.47
  4. Step 4: Simplify right side
    1,126,184,705.68x = 1,320,728,024,198,213,888
  5. Step 5: Solve for x
    x = 1,320,728,024,198,213,888/1,126,184,705.68
  6. Step 6: Final answer
    x = 1,172,745,480.86

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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.