Home / 104,574,430.92-156,558,731.93-78,775,385.39

Finding the Fourth Proportional to 104,574,430.92, 156,558,731.93 and 78,775,385.39

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Solution

The fourth proportional to 104,574,430.92, 156,558,731.93 and 78,775,385.39 is: 117,934,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,574,430.92 : 156,558,731.93 = 78,775,385.39 : x
  2. Step 2: Convert to fraction form
    104,574,430.92/156,558,731.93 = 78,775,385.39/x
  3. Step 3: Cross multiply
    104,574,430.92x = 156,558,731.93 × 78,775,385.39
  4. Step 4: Simplify right side
    104,574,430.92x = 12,332,974,443,439,922
  5. Step 5: Solve for x
    x = 12,332,974,443,439,922/104,574,430.92
  6. Step 6: Final answer
    x = 117,934,894.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.