Home / 156,998,365.89-216,653,785.06-86,433,271.62

Finding the Fourth Proportional to 156,998,365.89, 216,653,785.06 and 86,433,271.62

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Solution

The fourth proportional to 156,998,365.89, 216,653,785.06 and 86,433,271.62 is: 119,275,734.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,998,365.89 : 216,653,785.06 = 86,433,271.62 : x
  2. Step 2: Convert to fraction form
    156,998,365.89/216,653,785.06 = 86,433,271.62/x
  3. Step 3: Cross multiply
    156,998,365.89x = 216,653,785.06 × 86,433,271.62
  4. Step 4: Simplify right side
    156,998,365.89x = 18,726,095,451,592,080
  5. Step 5: Solve for x
    x = 18,726,095,451,592,080/156,998,365.89
  6. Step 6: Final answer
    x = 119,275,734.79

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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.