Home / 153,587,041.87-211,952,128.22-83,972,502.79

Finding the Fourth Proportional to 153,587,041.87, 211,952,128.22 and 83,972,502.79

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Solution

The fourth proportional to 153,587,041.87, 211,952,128.22 and 83,972,502.79 is: 115,883,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,587,041.87 : 211,952,128.22 = 83,972,502.79 : x
  2. Step 2: Convert to fraction form
    153,587,041.87/211,952,128.22 = 83,972,502.79/x
  3. Step 3: Cross multiply
    153,587,041.87x = 211,952,128.22 × 83,972,502.79
  4. Step 4: Simplify right side
    153,587,041.87x = 17,798,150,678,300,390
  5. Step 5: Solve for x
    x = 17,798,150,678,300,390/153,587,041.87
  6. Step 6: Final answer
    x = 115,883,153.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.