Home / 156,209,433.12-215,569,013.04-86,594,637.60

Finding the Fourth Proportional to 156,209,433.12, 215,569,013.04 and 86,594,637.60

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Solution

The fourth proportional to 156,209,433.12, 215,569,013.04 and 86,594,637.60 is: 119,500,597.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,209,433.12 : 215,569,013.04 = 86,594,637.60 : x
  2. Step 2: Convert to fraction form
    156,209,433.12/215,569,013.04 = 86,594,637.60/x
  3. Step 3: Cross multiply
    156,209,433.12x = 215,569,013.04 × 86,594,637.60
  4. Step 4: Simplify right side
    156,209,433.12x = 18,667,120,561,988,472
  5. Step 5: Solve for x
    x = 18,667,120,561,988,472/156,209,433.12
  6. Step 6: Final answer
    x = 119,500,597.30

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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.