Home / 118,731,641,035.68-163,867,575,076.32-72,408,942,472.92

Finding the Fourth Proportional to 118,731,641,035.68, 163,867,575,076.32 and 72,408,942,472.92

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Solution

The fourth proportional to 118,731,641,035.68, 163,867,575,076.32 and 72,408,942,472.92 is: 99,935,263,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,731,641,035.68 : 163,867,575,076.32 = 72,408,942,472.92 : x
  2. Step 2: Convert to fraction form
    118,731,641,035.68/163,867,575,076.32 = 72,408,942,472.92/x
  3. Step 3: Cross multiply
    118,731,641,035.68x = 163,867,575,076.32 × 72,408,942,472.92
  4. Step 4: Simplify right side
    118,731,641,035.68x = 11,865,477,816,878,154,907,648
  5. Step 5: Solve for x
    x = 11,865,477,816,878,154,907,648/118,731,641,035.68
  6. Step 6: Final answer
    x = 99,935,263,366.84

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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.