Home / 154,686,104.60-213,462,564.50-85,071,510.77

Finding the Fourth Proportional to 154,686,104.60, 213,462,564.50 and 85,071,510.77

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Solution

The fourth proportional to 154,686,104.60, 213,462,564.50 and 85,071,510.77 is: 117,396,342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,686,104.60 : 213,462,564.50 = 85,071,510.77 : x
  2. Step 2: Convert to fraction form
    154,686,104.60/213,462,564.50 = 85,071,510.77/x
  3. Step 3: Cross multiply
    154,686,104.60x = 213,462,564.50 × 85,071,510.77
  4. Step 4: Simplify right side
    154,686,104.60x = 18,159,582,853,998,936
  5. Step 5: Solve for x
    x = 18,159,582,853,998,936/154,686,104.60
  6. Step 6: Final answer
    x = 117,396,342.11

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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.