Home / 156,209,433.87-215,569,014.08-86,594,638.35

Finding the Fourth Proportional to 156,209,433.87, 215,569,014.08 and 86,594,638.35

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Solution

The fourth proportional to 156,209,433.87, 215,569,014.08 and 86,594,638.35 is: 119,500,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,209,433.87 : 215,569,014.08 = 86,594,638.35 : x
  2. Step 2: Convert to fraction form
    156,209,433.87/215,569,014.08 = 86,594,638.35/x
  3. Step 3: Cross multiply
    156,209,433.87x = 215,569,014.08 × 86,594,638.35
  4. Step 4: Simplify right side
    156,209,433.87x = 18,667,120,813,290,684
  5. Step 5: Solve for x
    x = 18,667,120,813,290,684/156,209,433.87
  6. Step 6: Final answer
    x = 119,500,598.34

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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.