Home / 154,686,307.10-213,462,843.95-85,071,713.27

Finding the Fourth Proportional to 154,686,307.10, 213,462,843.95 and 85,071,713.27

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Solution

The fourth proportional to 154,686,307.10, 213,462,843.95 and 85,071,713.27 is: 117,396,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,686,307.10 : 213,462,843.95 = 85,071,713.27 : x
  2. Step 2: Convert to fraction form
    154,686,307.10/213,462,843.95 = 85,071,713.27/x
  3. Step 3: Cross multiply
    154,686,307.10x = 213,462,843.95 × 85,071,713.27
  4. Step 4: Simplify right side
    154,686,307.10x = 18,159,649,853,458,520
  5. Step 5: Solve for x
    x = 18,159,649,853,458,520/154,686,307.10
  6. Step 6: Final answer
    x = 117,396,621.55

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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.