Home / 129,878,281,495.32-194,681,047,869.93-43,698,612,834.59

Finding the Fourth Proportional to 129,878,281,495.32, 194,681,047,869.93 and 43,698,612,834.59

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Solution

The fourth proportional to 129,878,281,495.32, 194,681,047,869.93 and 43,698,612,834.59 is: 65,502,034,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,878,281,495.32 : 194,681,047,869.93 = 43,698,612,834.59 : x
  2. Step 2: Convert to fraction form
    129,878,281,495.32/194,681,047,869.93 = 43,698,612,834.59/x
  3. Step 3: Cross multiply
    129,878,281,495.32x = 194,681,047,869.93 × 43,698,612,834.59
  4. Step 4: Simplify right side
    129,878,281,495.32x = 8,507,291,737,100,352,749,568
  5. Step 5: Solve for x
    x = 8,507,291,737,100,352,749,568/129,878,281,495.32
  6. Step 6: Final answer
    x = 65,502,034,975.78

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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.