Home / 124,425,615.90-186,638,423.85-79,019,996.70

Finding the Fourth Proportional to 124,425,615.90, 186,638,423.85 and 79,019,996.70

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Solution

The fourth proportional to 124,425,615.90, 186,638,423.85 and 79,019,996.70 is: 118,529,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,425,615.90 : 186,638,423.85 = 79,019,996.70 : x
  2. Step 2: Convert to fraction form
    124,425,615.90/186,638,423.85 = 79,019,996.70/x
  3. Step 3: Cross multiply
    124,425,615.90x = 186,638,423.85 × 79,019,996.70
  4. Step 4: Simplify right side
    124,425,615.90x = 14,748,167,636,720,202
  5. Step 5: Solve for x
    x = 14,748,167,636,720,202/124,425,615.90
  6. Step 6: Final answer
    x = 118,529,995.05

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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.