Home / 708,156,372.35-977,256,735.22-390,609,496.96

Finding the Fourth Proportional to 708,156,372.35, 977,256,735.22 and 390,609,496.96

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Solution

The fourth proportional to 708,156,372.35, 977,256,735.22 and 390,609,496.96 is: 539,041,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,156,372.35 : 977,256,735.22 = 390,609,496.96 : x
  2. Step 2: Convert to fraction form
    708,156,372.35/977,256,735.22 = 390,609,496.96/x
  3. Step 3: Cross multiply
    708,156,372.35x = 977,256,735.22 × 390,609,496.96
  4. Step 4: Simplify right side
    708,156,372.35x = 381,725,761,745,056,128
  5. Step 5: Solve for x
    x = 381,725,761,745,056,128/708,156,372.35
  6. Step 6: Final answer
    x = 539,041,625.06

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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.