Home / 87,243,081.40-130,752,647.70-53,128,214.20

Finding the Fourth Proportional to 87,243,081.40, 130,752,647.70 and 53,128,214.20

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Solution

The fourth proportional to 87,243,081.40, 130,752,647.70 and 53,128,214.20 is: 79,624,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,243,081.40 : 130,752,647.70 = 53,128,214.20 : x
  2. Step 2: Convert to fraction form
    87,243,081.40/130,752,647.70 = 53,128,214.20/x
  3. Step 3: Cross multiply
    87,243,081.40x = 130,752,647.70 × 53,128,214.20
  4. Step 4: Simplify right side
    87,243,081.40x = 6,946,654,674,222,738
  5. Step 5: Solve for x
    x = 6,946,654,674,222,738/87,243,081.40
  6. Step 6: Final answer
    x = 79,624,132.51

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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.