Home / 156,348,410.74-215,786,671.74-86,756,211.76

Finding the Fourth Proportional to 156,348,410.74, 215,786,671.74 and 86,756,211.76

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Solution

The fourth proportional to 156,348,410.74, 215,786,671.74 and 86,756,211.76 is: 119,737,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,348,410.74 : 215,786,671.74 = 86,756,211.76 : x
  2. Step 2: Convert to fraction form
    156,348,410.74/215,786,671.74 = 86,756,211.76/x
  3. Step 3: Cross multiply
    156,348,410.74x = 215,786,671.74 × 86,756,211.76
  4. Step 4: Simplify right side
    156,348,410.74x = 18,720,834,188,461,048
  5. Step 5: Solve for x
    x = 18,720,834,188,461,048/156,348,410.74
  6. Step 6: Final answer
    x = 119,737,924.42

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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.