Home / 152,160,331.10-209,963,542.18-85,182,956.81

Finding the Fourth Proportional to 152,160,331.10, 209,963,542.18 and 85,182,956.81

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Solution

The fourth proportional to 152,160,331.10, 209,963,542.18 and 85,182,956.81 is: 117,542,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,160,331.10 : 209,963,542.18 = 85,182,956.81 : x
  2. Step 2: Convert to fraction form
    152,160,331.10/209,963,542.18 = 85,182,956.81/x
  3. Step 3: Cross multiply
    152,160,331.10x = 209,963,542.18 × 85,182,956.81
  4. Step 4: Simplify right side
    152,160,331.10x = 17,885,315,343,717,824
  5. Step 5: Solve for x
    x = 17,885,315,343,717,824/152,160,331.10
  6. Step 6: Final answer
    x = 117,542,563.26

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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.