Home / 156,350,547.73-215,763,098.20-86,735,928.61

Finding the Fourth Proportional to 156,350,547.73, 215,763,098.20 and 86,735,928.61

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Solution

The fourth proportional to 156,350,547.73, 215,763,098.20 and 86,735,928.61 is: 119,695,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,350,547.73 : 215,763,098.20 = 86,735,928.61 : x
  2. Step 2: Convert to fraction form
    156,350,547.73/215,763,098.20 = 86,735,928.61/x
  3. Step 3: Cross multiply
    156,350,547.73x = 215,763,098.20 × 86,735,928.61
  4. Step 4: Simplify right side
    156,350,547.73x = 18,714,412,682,080,784
  5. Step 5: Solve for x
    x = 18,714,412,682,080,784/156,350,547.73
  6. Step 6: Final answer
    x = 119,695,216.64

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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.