Home / 156,432,776.28-215,877,467.72-84,905,683.48

Finding the Fourth Proportional to 156,432,776.28, 215,877,467.72 and 84,905,683.48

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Solution

The fourth proportional to 156,432,776.28, 215,877,467.72 and 84,905,683.48 is: 117,169,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,432,776.28 : 215,877,467.72 = 84,905,683.48 : x
  2. Step 2: Convert to fraction form
    156,432,776.28/215,877,467.72 = 84,905,683.48/x
  3. Step 3: Cross multiply
    156,432,776.28x = 215,877,467.72 × 84,905,683.48
  4. Step 4: Simplify right side
    156,432,776.28x = 18,329,223,945,180,348
  5. Step 5: Solve for x
    x = 18,329,223,945,180,348/156,432,776.28
  6. Step 6: Final answer
    x = 117,169,971.55

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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.