Home / 87,400,883.80-130,989,351.30-77,771,085.40

Finding the Fourth Proportional to 87,400,883.80, 130,989,351.30 and 77,771,085.40

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Solution

The fourth proportional to 87,400,883.80, 130,989,351.30 and 77,771,085.40 is: 116,556,991.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,400,883.80 : 130,989,351.30 = 77,771,085.40 : x
  2. Step 2: Convert to fraction form
    87,400,883.80/130,989,351.30 = 77,771,085.40/x
  3. Step 3: Cross multiply
    87,400,883.80x = 130,989,351.30 × 77,771,085.40
  4. Step 4: Simplify right side
    87,400,883.80x = 10,187,184,026,442,902
  5. Step 5: Solve for x
    x = 10,187,184,026,442,902/87,400,883.80
  6. Step 6: Final answer
    x = 116,556,991.00

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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.