Home / 130,191,407.70-195,003,676.35-78,984,114.90

Finding the Fourth Proportional to 130,191,407.70, 195,003,676.35 and 78,984,114.90

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Solution

The fourth proportional to 130,191,407.70, 195,003,676.35 and 78,984,114.90 is: 118,304,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,191,407.70 : 195,003,676.35 = 78,984,114.90 : x
  2. Step 2: Convert to fraction form
    130,191,407.70/195,003,676.35 = 78,984,114.90/x
  3. Step 3: Cross multiply
    130,191,407.70x = 195,003,676.35 × 78,984,114.90
  4. Step 4: Simplify right side
    130,191,407.70x = 15,402,192,778,750,814
  5. Step 5: Solve for x
    x = 15,402,192,778,750,814/130,191,407.70
  6. Step 6: Final answer
    x = 118,304,218.77

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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.