Home / 152,389,138.34-210,314,455.99-85,426,182.38

Finding the Fourth Proportional to 152,389,138.34, 210,314,455.99 and 85,426,182.38

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Solution

The fourth proportional to 152,389,138.34, 210,314,455.99 and 85,426,182.38 is: 117,897,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,389,138.34 : 210,314,455.99 = 85,426,182.38 : x
  2. Step 2: Convert to fraction form
    152,389,138.34/210,314,455.99 = 85,426,182.38/x
  3. Step 3: Cross multiply
    152,389,138.34x = 210,314,455.99 × 85,426,182.38
  4. Step 4: Simplify right side
    152,389,138.34x = 17,966,361,073,922,326
  5. Step 5: Solve for x
    x = 17,966,361,073,922,326/152,389,138.34
  6. Step 6: Final answer
    x = 117,897,911.03

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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.